best bet is ebay, search for "canon f1 body parts" and you'll find some cheap options depending on parts you're looking for. sometimes you can find old bodies at goodwill, garage sales, or craigslist.
-jaewoo
Rebel XT, 7D, 5Dm3, 5DmIV (current), EOS R, EOS R5 (current), R50V (current)
