Hey, I was JUST about to post something similar. I want something that can handle 200psi, but with a small tank, tho I figure if I go that far, might as well have air tools as an option (i figure that's just one more pressure regulator but I can probably just put that on the line with the tools....?)
here's something i found while looking:
On-Board Air Compressor
HOW'S - - Off-Road.com