You run a search on C/L hoping to cover all possibilities that might ferret out a listing. Here is a guy who puts almost no clues in his ad.
https://oregoncoast.craigslist.org/cto/6210659702.html
1975 GMC C6000 for $500
This guy is selling a pretty interesting project truck, This is a 1965 Chevrolet ½ ton original 4X4 pick up Long bed
He has done a LOT of work.
https://oregoncoast.craigslist.org/cto/6194496837.html
'58 Sedan Delivery, runs and drives. $1500
https://oregoncoast.craigslist.org/cto/6193950057.html