You seem to be over thinking things. I usually just slobber the stuff on and go on the the next thing. :LOL:
BTW - don't tell anybody, but I've used Thompson's Water Seal when I was out of poly or varnish.
@alldodge . . . Here you go . . . a F-310-BR on display last fall at a boat show . . .
Pricey . . .
.
I have not seen many on the used market (looked quite a bit last year), but maybe there will be some coming along.
What ever you come up with, it will probably work fine . . . not really rocket science.
I've used varnish, and I've used polyurethane. It will take a few days to dry, so plan your timing accordingly.
@Lpgc
It sounds like you did good . . .
Finding the fastener hole patterns and other critical dimensions from rotted pieces of wood can be challenge . . . the fastener hole pattern in the boat, or other dimensions from the boat, can be helpful.
Here are a couple of the more challenging jobs...
It would be making a modification to the insurance policy to update the engine type, HP, etc. and the agreed value. A survey would probably be needed to arrive at an agreed value. It probably won't be much more than the current agreed value, since the boat has lost value, and the new engines...
On another note . . . in talking with the Mercury rep at the boat show, he said that I could have a joystick on the re-power . . . not getting into any specifics though . . .
I do boat upholstery when I'm not playing with fiberglass. It sounds like you are on the right track. I would have used regular exterior grade plywood and spent the difference in $$$ on beer, but that's just me. :ROFLMAO:
Definitely treat the wood once you have it shaped and the drainage/air...
