Cloth weight for sole

[Bushwacker]

That's way too light. That deck is basically the top of an I-beam, where stiffness is proportional to the 4th power of thickness, i.e. 2X the thickness ='s 16 times more stiffness! I'd recommend matching the original thickness, which is about 1/8". Roughly 2 layers of 1808!

The reason a SeaCraft has a relatively light but very strong hull is because Moesly knew how to put the glass where it would do the most good!