Starboard?
Hey DPT, you probably already know this, Starboard seems to be the only synthetic type of material I know of that is used to replace wood parts on a boat, the only problem is I don't think anything they have to offer has a wood look. Fran at Barrett marine in Waterloo, NY said that the stuff is very workable and that you can use standard wood tools to cut and craft it. Jamestown Distributors at jamestowndistributors.com is one of the, very many, places that has all sorts of wood and starboard products this will give you an idea of cost, sizes etc. Good luck on your search