Thanks, Ebb. When I looked at McMaster-Carr I thought the sheets seemed kind of expensive once shipping was factored in. But I had all the supplies on hand (minus my sheet of glass )so why not just make it myself? Capt. Kurt said once, a long, long time ago, just use cheapo polyester to make sheets out of. But being this was for the water tank I figured I'd keep it all epoxy as everything I've read had refered to epoxy. My bad on the resin amount though. It was only one half of a gallon....

I glued in the baffles last night with some big fillets so I'm curious to see how stiff everything became once the epoxy cured. Next up is some kind of 'fillet forming jig' to thicken up the top edges where they'll meet the tank top proper. This ought to be amusing!