Schurr Sails in Pensacola has at least 3 versions of mains and spins. Jib is the same cut. Getting the specs would be as easy as asking the new owners, Mark Smith and Ken Altman. There is nothing to hide. I don't think there will be any success in coming up with a unified acceptance of a new sail. Keep the size of the sails the same and play with their design to maximize their efficiency.
Capt Cardiac Ocean Springs Yacht Club Sailor Nacra20 - Flight of Ideas #5