GOOD LUCK.
It's been tried several times & 1 guy Blamed oldgas, because his site Failed.
ebay does give oldgas a small referral fee for each winning bid that originated from oldgas search boxes, which helps to keep this a free site for all users.

Reproduction/Fantasy Cans
http://i124.photobucket.com/albums/p2/oldegaspump/AllCansMASTERTHUMBNAIL_zps4bfdbbc7.jpg
Rnd Can Re-lids