More than 63,000 boats were damaged in the hurricanes and storms earlier this year. Some sank, some have been repaired, and some – nobody knows exactly how many – are showing up in the used boat market. It’s never been more important for you to get a professional survey before you make a commitment on a used boat. But to help you evaluate a used boat yourself, BoatUS has come up with eight telltale signs that the boat you’re looking at may have been damaged. They range from looking at new sealant in the hull-to-deck joint (boats that slam against…