I like whatcha done here Meat! I have been looking at it at XS11.com, where cafe racers get little love! (T99ford over there, since the new truck). It seems that liter bikes are the minority in caff racers too, although I have to say yours looks the part a little more than mine. The rest of your bike is silver and black, why not paint it silver and black (Boingk beat me to this!)? Keep the numbers if you want.
I think you should drop the bars a little, though, either clubs or clip ons. At at buck twenty you gotta keep your head down! I like what you did with the electrics under the seat, and even the homemade air filter. Nice pipes too and overall nicely done. The XS1100 is hard to make look right, and I think you got it pretty good with the swing arm, relocated electrics, and such. Just the copper pipe looks a little like a horse's schlong though, since the color doesn't tie in with anything else on the bike. I would paint it black. I think your are pretty near there, though, but just my .02 ;D
nice job!