I just had to have mine repaired. A couple weeks ago I was towing it to go do some bowfishing. After I launched it, it completely filled up with water in about 3 minutes. Turns out a 2 ft. long piece of broken leaf-spring got kicked up from the road and punched a hole in the bottom big enough to throw a cat thru.
Anyway, a small machine shop here in Ghent tig-welded it for me, cost $85.