Swap texture space on a cc accessory to work w/cc eyelashes

I've gotten as far as moving the texture to a different space (using this image as a guide and placing the texture under glasses, since I don't often use them.) But now I'm lost on the part where I have to do things in Blender. I was following these instructions, but I'm not familiar at all with Blender and was hoping for some clearer instructions, or some help realigning the mesh with the new texture placement.

I have linked the files if someone was willing to help me out. Only the Diffuse has been moved to the new texture space, but I have included the other texture files as well, since I'm not sure if I also have to realign the others. Some clearer step by step instructions would also be appreciated so I can reproduce this myself for future cc I might want to modify. These edits will only be for personal use.

Thank you!

Link to texture files and mesh here.