Ok, here's the deal......My 1946 mahogany runabout has been out of the water for about three years. What's the BEST procedure for making it as waterproof as possible? This boat will be trailered and used most weekends. Do I dunk it and let the wood swell and THEN caulk? Caulk first? With what? Does 5200 fit in there anywhere? It would be nice if I could do it right the first time instead of finding out later what I SHOULD have done. Thanks for your help.