Nelson (forgot the company's name) used to sell a 2 part water based paint that was formulated by a boat building company. Nelson sold the company a couple of years ago, but I think the new owner still sells the product. I used it a lot, but it is very difficult to get a gloss finish. Also it will not stick very well to any primer except from the same source. Primer is white and sands easily, but the final coat is matte unless clear coated, which they also produce. It is very fuel resistant. Easy clean up and no odor. Weird thing is, since it's water based, the best finish is achieved on the most humid days. I used to wet the floor of my shop with a running soaker hose to get a much better finish. It flashes very fast on a dry day, almost like lacquer. You can probably find it via Google.
Paul