Ken, the closest thing to this that I've seen is Jeff's Swap Meet web site. LOTS of stuff for sale there, so you need to visit daily. Junk, semi-junk, parts, glorified bits of rust, etc. You can also post your needs and the site gets a lot of traffic. I don't have the url memorized, so I'd direct you to the VMX magazine web site and their Links page. It's at www.vmx-mag.com.