Re-Skins

Hello, I would like a reskin mod for vanilla, I've tried various reskin mods. Sadly there are only a few. Is it possible to extract skins from another mod to use for reskinning vanilla game version? I would like to use skins from imperial splendour to make a base vanilla reskin, no additional units, just reskin existing vanilla units, how can I do that? Can someone make us a reskin mod similar if there is a copy right issue? Thank you.

You could try the AUM mod, if you don't mind the additional units.