I don't know if it will work for this, but I make cyberfaces for EA's MVP Baseball, and I use a program called OEdit to replace the textures on the face and the shape and stuff. It's hard to use but it might work for this. I just don't know if there is a converter of the civ leadehead file type to the O file. You might want to look into it, because the animations would REALLY take this mod to the next level.