I used Interlux Brightside paint on my boat bottom and it blistered from sitting on the damp bunkers of my boat trailer. It does not do well with prolonged contact with water.
Marty, I am in PA. I will be at Skuas on the Lehigh, and will likely be at Kent Island and Nationals and can deliver them to you in case you will be at any of those events and can wait that long.
I actually used the PVC clamps and they worked out really well. I used them to install both the rails and the deck. I used varying sizes of pipe depending upon how far I needed to open the clamp. It was a simple and cheap alternative to spring clamps or C clamps. I did have to use some good C clamps for the rail, but did not need too many. When I installed the deck I also loaded up the deck with anything heavy that I could find. It looks pretty funny, but it worked. Here are some photos: