I am about to gain possession of my grandfather's old boat. i know the boat was made by Lone Star Boat Company in Grand Prairie, Texas. It was bought in the 50's, and is a riveted hull. I was wondering if anyone knew if the company was still in business. Also, i was wondering if, since it is a riveted hull and has rubber sanwiched between the two plates, what is the best way to seal the boat? I am going to repaint the outside hull, and I don't know if the paint would be enough to seal the old rubber.