Sounds like quite the demo indeed!
Arg... I can find online, but the shipping is a bit much. I really do miss swap meets and decent second-hand shops - the ones around here aren't very good. When I was in NYC one could find practically anything on the sidewalk. The week I left I found a minty 840AV in Jamaica with accessories for less than $20. Old Nubus and PCI macs were growing on the sidewalk. Not too many 8-bit boxes though. And the MIT swap meet was nerd heaven... Even in my stuffy new town, there is some small hope. Nearly time for the spring-cleaning tag sales!