if you want to store your cat off the beach all you need is some metal pipe and a couple feet of pvc to fit over the aluminum. The racks look like 2 "H"s. The cross bar is a couple of inches wider than the boat and the vertical posts should stick about 4 feet into the bottom and be tall enough so the the boat is sitting about a foor higher than the largest waves. Then screw a large earth anchor into the bottom infront of the windward rack, and attatch a tow strap between the front of the tramp and the screw anchor to prevent it from taking off during a storm. A picture of the rack is pictured in the link. The un-rigged hobie is sitting on one of them.
http://www.face...d=1367010064