Aquarius Sails still supports the Supercats line. Tom would be a great person to contact. They will also have any of the parts if you need them.
I think a contributing factor with the SC 20 that TMS was talking about was the boat was moored on the water for a few years at the least, could be some sort of water saturation. I almost bought that boat. Glad he renigged on my origional offer.
Also did not help that they took it out in a Topical Storm watch.