As a quick test, here is Antonia 1.3 wearing the Sophie texture for V3 by 3dStrike. Some visible seams, as expected. I imagine the quickest and dirtiest fix would be to use a background that approximates the skin color when rendering out the transferred textures. Anyway, I think we have proof of concept. Also, I'll be happy to share that Python script once I've made some improvements to it.

-- I'm not mad at you, just Westphalian.