Lund Sailboat - Superior Scout

I stumbled across a 1975 Lund Superior Scout sailboat. Yes, the same Lund company that builds the aluminum fishing boats. Apparently they did some fiberglass sailboats back in the 70’s. It is approx 13 feet long, almost 6 feet wide, and is more of a cat boat set-up (mast far forward, large mainsail) Looking for ANY information on this boat, especially related to size / dimensions for the mainsail. Any & all info will be appreciated. Thanks.