It's possible, with a lot of slicing, dicing, vert tweaking, and UV finagling to combine two separate textures (heads require a single texture if you want DS transitions):
However, the danglymeshes for the ponytail, bangs, etc. no longer work. MDLOps doesn't compile these properly, so these bits are rigid.
Someone would need to do a better texture for the hair. I just did a half-assed overlay in PS to get it white-ish looking.