Hello, I'm replacing all of the plywood bulkheads, covers, etc. in my '83 20' cabin with marine grade fir plywood. The look of the plywood is pretty unappealing as far as wood goes, but I don't wanna just paint it all over, and bad-looking wood never really looks that bad anyway. If you've used fir plywood, perhaps you might tell me... (1) What stains work well to darken the wood. (2) What sort of finish you used (epoxy, varnish, etc.) (3) How it is holding up. I'm a salt-water sailor, so I imagine the stress will be a bit more on the material. So I might be leaning towards a water-based stain and UV-stabilized epoxy. All info appreciated. Thanks.