[JSC]

Bruce & wannabe .. gave you some good advice.
Just a little further .. I would not get one shorter than 14' .. Highest sides and width .. several Jon boat builders make a semi V and would look for one that the V extends to the transom .. speaking of transoms .. go ahead and get the deep one while you are at it ... this will get you a good platform to build on .. great in small or on big waters (big waters with caution .. depending on your skill ) Another thing that will cost a little more but more than save the difference in the long run and that is to get an all WELDED hull. ... Been there done that .. Love my Aluminum boats ...
Hope this helps a little
JSC