Thanks for the responses guys.
ViperTx I though all marine plywood floated!
I will need 4-5 sheets per purchase and the plan is to make three-4 purchases a year.
ger21 I'm trying to reduce my glue time now with buying thicker plywood. I can make the stuff from scratch but it would be too expensive to use.
InsprirationTool thanks for the link. Will go there now.
Mike