If it were me it would be painted cream on top and light
forest service green or light
mint green on the bottom. These colors inspire camping. I would never do it primered as it limits the buyers market. no one wants to spend big amounts of cash and still have to work on it. You also open the door to the paint
job didn't come out right and now we are not going to buy it or what is really going on underneath that primer. First impressions make the sale and bad impressions are hard to over come. Primer is a bad impression.