Great start Scarecrow but please re-write Rule 1.3.1.
"Hull panels shall have a weight of not less than 1.2 kg/m2 (equal to 3 mm Gaboon)"

Sounds like something a New York lawyer would dream up....Keep it simple and just state in plain English what the minimum weight is... you can calculate that based upon the general box parameters built out of 3 mm Gaboon ply, just give a minimum finished ready to sail weight and everyone will know where they stand.