making me cry skeletons

[mcnv]

https://www.nexusmods.com/skyrimspecialedition/mods/43631/?tab=description&jump_to_comment=91203503

this mod uses a custom skeleton. Not the basic XP32 Maximum Skeleton Special Extended.

 

I have tried to replace the custom skeleton with the XP32 skeleton but it would just dislocate the neck...

 

In other words, it will not work with physic enabled bodies or anything relying on the more complex XP32 skeleton without having this issue. I understand there is no way to merge two separate custom skeletons together. Using custom skeletons is ill advised in skyrim modding but it happened.

 

My question is... what can I do? can I convert the race to use the XP32 skeleton and how would I go about doing that? This is beyond my feeble modding knowledge.

 

(P.S. it appears to be a fairly old mod.)