For a project boat, I would stick with a more accepted classic hull, Bertram, Hatteras, some Chris Crafts, some Trojans. There are some real deals out there on these boats. I never cared for the Uniflite small cockpit design. My experience with old inboard hulls is that updating the systems rather than the hull is where most of the expense will be. I wouldn't take on a project that needs the topside rebuilt unless the rest of the boat was otherwise almost perfect. If this boat isn't free, I bet there are better deals to be had.
Here's a website with some interesting Uniflite info. http://www.unifliteworld.com/