If you have collected a plenty amount of mods, you may have noticed that some of their texture file have a similar looking, like it shows below.
This is probably because these modders use a base body model from a same source. The model i use, whose UV map looks like the left one, comes from zeroruka, who shared his blender file in his Gamebanana. According to him, this model can be backtracked to here in SmutBase.
The right one i've found in DaB||'s work. The shape of each UV island is same to the left one, only their scale and position are different. i'm not certain whether i've reached the origin of these model, though. i'd love to hear it if you knows more about where these models comes from.
Anyway, this similarity leads to a convenience in copying texture. For example:
Yanfei mod from RenKamui, replace to a texture by me.
Xianyun & Emilie mod from weebovz, switch texture.
Ei & Yae mod from me, switch texture.
ZZZ mods from monsoon, replace to a texture by me.
Here i provide you a pdn file, which you can open with paint.net. You can get a white/brown full bodytights/reverse bunny bodysuit/living cloth texture by different combination in the file.
Also, for some of my mods, i should have left a pdn file of the body diffuse dds in the folder, you can find more details of my work there.
Have a try! :)