Dave,

The hull is fiberglass. Everything else is plywood, dowel rods and brass tubing. The deck and superstructure are all built up plywood and need to be glassed. It is not a kit to build over a weekend.
You will not be happy with the dumas motors. You will be happier with glow or at least Astroflight .25 electric. Also, get 2 speed controls so you can dock it and run it in a scale manner. Buy the Dumas railings too, unless you can solder brass rod. The tuna tower and outriggers are dowel rods. You may want to make these from soldered brass rod. Nice scale looks though.