"I did see a Conker's Bad Fur Day debug/development build for $5000 once. It's been sold, and chances of it being dumped are slim due to the extra tool needed to play it (which serves as a security device, not sure if it really stops people from dumping the cart). I do know someone who knows someone else with an actual Conker 64 prototype (the non bad fur day one), but the price fetches for a 5 digit sum - and, the guy isn't really that interested in selling it to begin with. Oh well."

Is there anyway I can get in contact with your friend?