This is a workaround I thought of when I was doing the cape wings. I'm kind of shocked that others hadn't figured out this solution yet, sure it's not perfect and it only affects ingame but still.... I only started doing the cape display 3 days ago, ask Soldan or PhantomX if you think I'm lying lol. Anyways a handful of others have done this prior to me and somehow I find it hard to believe they didn't explore it further?
GearSet Used is: http://www.wowhead.com/transmog-set=...legear-recolor
I've only done one so far as a test, I'll write a batch later to do the rest in one go instead of having to manually do them each one at a time. tootles!