Advice on porting FNV head/character to Oblivion

[NumerousThings]

I know you can't legally share or really discuss the topic of porting content between Fallout and other games however I am intending to make the mod for private use and content doesn't need to be directly ported if I can make a good enough approximation. I am aiming to port Christine Royce as a follower to Oblivion as I've always used her as a modded follower in FNV and would love to be able to play Oblivion with her as a follower too. After asking around and doing some research I've been pointed towards using Blockhead and believe that may be the best way as long as the body works out correctly but I can't seem to find any example models for the heads and how to scale them. I know how to actually apply the model as I've read the readme for Blockhead but I'm not too clear on the actual implementation of it.

 

I'm also open to different pieces of advice as to what would be the best way to port her as an NPC if anyone thinks there may be some better way.