I do believe that is a G-Cat 5.0 MkI. Please don't toss this boat in the dump, it's a very rare find and they're good boats. I you weren't so far away (I'm in FL) I'd come help you fix your boat up. If you feel like hauling it to FL sometime...
David Parker- please ask Hans what the best way is to replace the deck boards on the 5.0 MK Is. I believe marine plywood can be used.
I'll head to the beach this weekend and take some pictures and measurements of the 5.0s that are there and post them next week.
Didn't David Mosely send you a rigging diagram?