I remember these boats. They are a big cousin to the nortorious IOR era Morgan 27's and kid-sister to the Morgan and later Heritage one tonners. Like the M-27's, these boats were notorious for fragile keel to hull joints. They were also known for large amounts of topside flexure, bulkhead separation, and rudder post issues. The M-27's that I knew well were all raced pretty hard, and generally needed to be beefed up early in their life with the addition of additional frames, and tabbing in these critical areas.
These were good boats upwind, but were hard boats to sail downwind or in a beam chop as they tended to roll steer badly. They took big comparatively skilled crews to sail well, especially in a breeze. Not exactly good boats for offshore or short-handed sailing. Certainly an interesting piece of yachting history. Just be careful with it.