I have a fix for it. Will add it to the Endar Spire Hull Fixes mod shortly. But I can run you through how to replicate it if you want. The solution is in fact a copy and paste, of sorts.
Got a Zaalbar variant, although I'm still fiddling with the textures:
I also need to figure out what to do about the eyelids. The face structure around the eyes doesn't line up well enough with the original to get a decent blink. I might have to edit the animations, ugh.