FYI- the original trike up there is back up on auction.
I've noticed half these things don't ever make it to the auction date- not sure why- either people decide there's no interest and pull the ad, or maybe somebody buys it off craigslist first or something.
I've also found that on the three wheel thingies, people just don't know what to call them, so it's hard to search for them- ice cream cycles, parts hauler, trike, etc.