This is absolutely for a personal project.

 I you look at the attached file / pattern from the Silverleif Studios texture pack, I think even the individual elements are different.

Part of the problem with using it as a repeat pattern is that the V4 jeans are much higher resolution, and if I try to map that pattern then it comes out very tiny.  I've tried resizing it larger, but it loses its resolution.

I guess one possibility is to re-create the elements individually in photoshop, then apply them as a brush onto a new piece of denim.

OR -- I could use the clothing conversion tools, like CrossDresser, to convert it from an original V3 pant to use with V4, then try to apply similar morphs as the V4 jeans.

The original artist did this package a while ago -- so it's entirely possible she wouldn't be able to recall exactly what she did.