Looks a lot like an old Crestliner JetStreak, although someone has done a pretty good job of ruining it by removing the foredeck... www.retrocrestliner.com
I've been doing some searching and I think it might be a '58 Duracraft Supreme. It looks like some of the interior area around the helm etc is missing though.
I received some more pictures of the boat from the seller and all the bow area sheetmetal is basically gone. He want's $400 for the boat but I'm thinking I'll probably pass.
This boat isTexas Maid, now Glastron. My friend had one, and 'remodeled it' with great improvements! Call me if you would like more info... CaptsLady492004@Yahoo.com 727 259 4018