Get yourself a can of latex paint in whatever color you want. Paint it on your cab, brush or roller doesn't matter. Do 2 to 3 thick coats. Then once its dry, use a sander and sand the brush marks off. Sand just through the brush marks not through to the wood. Then finish with spray paint in the same or similar color as your base coat. The brush on provides a nice thick base and the spray paint gives you a nice finish coat with no brush marks. Less work than it sounds like.