I recently had a 16 foot sea sprite given to me and after tearing out the floor and soaked foam discovered I had solid stingers. I plan to try someting different on this boat using inflatable fenders between the stringers for flotation and covering the deck with composite lumber. I know the foam provides some structural support, so plan to do some fiberglassing to return the strength. I know the fiberglass won't stick to the composite lumber. Some aluminum tubing may be used to provide strength. Have any of you attempted this kind of thing and am I wasting my time thinking about it? I appriciat any thoughts on this idea