I'm with Ryan on this..... first place I would look for cool ideas is at your local marine supply. Boats deal with the same problems we have with our "eggs", mildew, condensation and seals. (because I live on the west coast these stores are easy to find, they are like Stabucks, one on every corner)
There are some easy to apply 2-part marine paints as well as industructable vinyl flooring and fabrics.
Another wonderful boat product that I'll be using to rebuild some bulkheads, etc is STARBOARD. This is a plastic sheet product that can be used instead of plywood. It comes in various thicknesses and can be glued, screwed and cut like wood. It won't rot and doesn't "grow things". I have a strange configuartion in the front of my Boler
that I am changing to a sofa w/ storage and a porta-potti. So I'm going to try the Starboard to build the frame of the box. it should be easy to clean and last forever.