I can actually see him fitting in GN'R. He's got the skills and the peculiar looks (which is one of the things I like about the new band - that sort of mad carnival sideshow feel). Looking at his signiature Telecaster:
http://www.fender.com/products/show.php?partno=0155500it also seems he's got a sort of skewed country vibe, which I suppose could hark back to Slash's blues-rock feel, if applied in the right way. I mean, he's got a Bigsby trem, for heaven's sake...
SG