Re: Cost per foot
look at it this way, most, if not all boats you will find for $300 or free even, will be 20+ years old ('93 or older), and most like neglected. Also, most will be of the price point, budget boat brand. 11 of of 10 of them will most likely need a full rebuild to pass a survey... buffing the gel wont cut it. In the end, it will be outdated in style, tech, and alot of components will have used up their useful life cycle.
You can buy a Dodge Airies k for next to nothing, cut and buff, clean it all up, tune it all up, weld the rusted frame, yada yada...in the end, you will get peanuts.
Find a Donzi, Bertram, Scarab, Blackfin, Tiara, Mastercraft, Fountain, Formula ect, and you could fare ok, but you wont find one of those for near that price, you will find Imperial, Bayliner, Sea Ray, Fiberform, Citation, Four Winns, ect ect..