Required :
Paint.Net   Paint.net
CAO ( Chatedral Assets Optimizer)  CAO
Ordenador  Ordenador

The mod to be converted, preferably with your Bodyslide . This will make the process easier, allowing you to reshape at will

Process

Obtain the mod to convert  DOAXVV Dark Prison 3BA  

Extrat zip, delete zip

Launch CAO with this setting

Click on Open Directory and import mod folder , click on Run . Wait for the end of the process . Depending on the size of the mod , it may take several minutes . 

All nifs are converted as follows

Open the textures folder, open DDS with Paint.net , Without further modification , CTRL+SHIFT+S , save with on-screen settings

Repeat the process for ALL DDS

Launch Ordenator with on-screen settings, from the folder icon, load mod textures , Click on Run, wait for the end of the process

Close the program, the mod is converted.  

Here you have 2 options.
1) Re-zip and install it with your ModManager.
2) Copy/Drop into Skyrim Data, activate ESP

PS :. If memory serves, I had permission to @Harvald  To offer this tutorial 

Enjoy your conversion ?

EDIT 

I forgot : Thanks to @Harvald for this Tutorial

original mod : Egil's Demon Hunter 3BA

Sound .  Egil's Demon Hunter

???? ??? ??????????? ?????? ℑ ????? ???? ??? ?? ?????? ??? ????? ???, ?? ?????????? ??? ????????, ℑ ????? ???? ???? ?? ??? ??????? . ????? ????? ???? ??????????. ℑ? ?????? ??? ???????????, ???? ???? ?? ???? ???????? .

Original mod  [Christine] Street Kunoichi

How to do ??

1) use this for conversion  Cathedral Assets Optimizer

2) Extrat zip and convert all 

3) Open a folder , into Body Type folder find the Bodyslides: CBBE, BHUNP, CBBE 3BAV2

4) get CalienteTools folder according to Bodyslide installation, paste it into main / data folder

5) At this point, open the Main folder, take the entire content and paste it in Skyrim Data, activate the Plugin

6) Remodels in Bodyslide

7) In game, obtainable with AddItemMenu

Horn not included

Wonderland Lingerie

Rebuild with Bodyslide

After installing it, I had some CTDs caused by the skirt.
Resolution:
  I edited the Skirt.XML file

CTD deleted. Added Heel Sound  [Myst]WonderlandLingerie.esp with Heel Sound 

If You Have CTD when you equip the skirt

Skirt.xml  Prevent CTD . Copy/Drop into Skyrim data\meshes\clothes\ Myst\WonderlandLingerie 

If BBB is missing when you equip the bra

How to insert HDT-PE into body

The resolution is very simple: just delete the parts. This is where the visual memory of the parts to be eliminated comes into play

Import the armor into Outfitstudio : Import nif\skyrim data\meshes\folder armor\armor_1 

Locate the armature part and partially turn off the headstock and select the Body Shape

With the tools highlighted (their position may vary depending on the Outfitstudio Update) and the size of the brush, let's mask the parts we want to keep hidden . The appearance of the green dots is intended to avoid excessive masking, just click on the dot to mask only the affected area

Once the area is masked, click on Shape \ Separate Vertices , rename (just enter any letter)

Select the palette thus created, right click and Delete

Once done, reactivate the armo vane , Export nif and overwrite the armor . The parts that were exposed will be removed . Test in game and make further changes if necessary

  This process is valid only for those armor that conceal the body. It is not applicable to parts with transparencies

After some testing, I got the suggestion on how to fix some glitches  Bodyslide does not fix? [solved] 

Solved the various problems, I also generated the masks by combining them with the kimonos (the original mod does not contain them)

( For this operation, I will do a Tutorial on how to add parts without using CK   )  

The result obtained after a few days and attempts

Apply Fire Effect and Fire Damage

Variants added:

Damage increased
Magical Effects: Unbalanced attack (touch), life drain, instant kill (random), poisonous claws (touch)

Effect: Soul Captor . Effect created, does not belong to the original mod

Damage increased

One-Handed weapon skill

Tempering : effect unknown . 

Integrated mod (not needed)

Demonstration

The test was the mod  Hospital Clothes

All accessories are incorporated in one of the two clothes (Stethoscope )

To generate it separately you need to:

With Outfitstudio :

 Import the nif that includes the chosen accessory ( See screen just above ) , right click on everything that does not interest us, and Delete, will remain the Stethoscope . Navigate to Partitions and select the one on the screen, then click Apply . Export the nif renaming it, and insert it in the respective folder (Hospital Clothes, in our case) . Now, we find ourselves with a very distinct accessory

At this point, since it is a non-existent object in a separate form, it must be generated by the ESP . Here, TES5Edit comes in handy .

Run TES5Edit, right click, select none, and activate only the ESP you are looking for. Hospital Clothes . Extend Armor Addon and Armor menus. Here you have to enter the missing strings to generate the Stethoscope

Right click su Armor Addon and select Add ARMO Armor Addon , an empty string will be generated to be filled in its parts 

Below, the string added and compiled (  An Identification ID will be automatically generated ) . for the correct compilation of the parts, help yourself with the one above (I used the Panties as a guide)

The Partition MUST be the same as that of Outfitstudio, otherwise the object will remain invisible 

In this modification, the textures come to our aid, as they already exist in the folder. Fill in all parts . 

Once you're done with the Armor Addons, for the Armors, the process is pretty much the same

Right click up Armor Add ARMO Armor . Again, an Identification ID will be generated . For the compilation, help yourself by using the Panties as a guide.

Let's move on to Armor Addons Doctor Clothes, and remove all unused Partitons (use NurseClothe as a guide)

When finished with TES5Edit, close the program (red icon at the top right) and the ESP will be automatically overwritten.

Let's go back to Outfitstudio

Import the nif Cuirass_1 ( all nif_0, can be safely deleted, for this project they are useless and create a double job) . Here, I have already removed everything that did not interest me, including the stethoscope

Let's move on to Partitions and rename as in the screen below, apply. Repeat the step also for jacket1, export the nif and overwrite. Without this step, the dress will make the body invisible . 

At this point, we are ready to use our created accessory . Sexlab will also identify the accessory

I think I have not forgotten anything. Good handling 

EDIT 

To make the item Temperable / Enchantable, the process is the same. They will be added in Constructible Object, always guiding themselves with a pre-existing one .

With the same method, you can also add parts of other clothes . For the parts NOT belonging to the mod, remember to re-texturize .

If you want to use textures from other mods, they will be copied to the folder you want to modify and reapply from the folder you modify