Scott at P&P Performance deals in Mustangs big time, he may be a little too east for ya though, but I'd look em up. We have a few vendors on www.coloradostangs.com that can do gears though, you may want to sign up and ask.
I can't seem to pull up P&P Performance anywhere, do they have a website? I just registered on coloradostangs.com and awaiting activation of my account.