Call me Crazy(boat), but do you feel like taking a $100 gamble? If so, take a queen or King size good quality inflatable mattress and park your boat on top of it. Inflate the bed and your boat should sit out of the water. you'll have to work out how to keep the pump from submerging, but I'd say give it a try. If you do, post some pics, if you don't, oh well.