I have a '64 GMC longbed stepside, and I just ordered my bed wood (pine) from Mar-K. I've seen their test results, and am going to paint it. I'm wondering who has done this and how much paint it takes. The POR-15 rust preventive paint is rather expensive and I want to make sure I have enough without having a ton left over. And I'll probably have to order it online, not sure where to get it locally.