I see nothing wrong w/reselling something like that or with the auction. I always put it works and sold as is because some idiot thinks a warranty goes along with a old computer like the Amiga. Hey it works here, if it blows up on you two weeks later or two months later you should expect it.. ITS OLD!
EDIT:
but I try to be as descriptive as possible if there is a problem..because it does suck to buy something and it has issues not listed in the auction.