I'm thinking that I would like to make another dash pod for my remote display like I had in my old car. Thing is, I don't want to make it out of lexan again because it didn't hold together well and it looked really tacky. Instead I'm thinking about fabricating something from MDF (medium density foam) since I can sculpt it to pretty much any shape I want. But where do I get it? Are there local sources for that kind of thing or do I have to order blocks of the stuff online somewhere?
Also, what's the best way to finish the surface for painting? Some kind of "mud" or epoxy?