Think you need to expand your search beyond Florida but before you even do that, you need to define your requirements a little better and come up with a target budget. If you want a boat under $50K with a protected prop, most of the boats will be Taiwanese Tubs that need work now and forever. The ones with the teak decks replaced, new fuel tanks, new windows, no soft decks and no leaks are almost non existent.
If you look on the Great Lakes, you might find a TT in better condition for no other reason than that they sit in a barn for 7 months out of the year and don't get exposed to salt air and water. Once you bring one to FL, all bets are off.
Here is a non TT up in Ohio, you may want to consider (note - I have never seen it and have no knowledge of it).
1973 Willard 30 Vega Nomad Power Boat For Sale - www.yachtworld.com
Here is a boat in TN, one of our members has for sale.
http://www.yachtworld.com/boats/1981.../United-States