I'd start with this forum's "market" section and don't forget craigslist and local classifieds - it's your best bet when it comes to looking for a project boat.
Try searching craiglook / setting up some email alerts - it makes scouting much easier:
Originally Posted by rwrogers
I would like to locate a mastercraft project boat & trailer between 19 & 23 feet. I want glass stringers so I believe that this means 86 or newer. Preferably an open bow but not essential. Ideally this would be within 400 miles of 28705 but will consider farther depending on the price and condition of the trailer. Please email me at firstname.lastname@example.org
of call at (828) 467-3001 and leave a message. Thanks, Bob.