My field box is 30 years old and the polyethylene spar varnish is just fine. However, if I were to do it over again, I would use Candy Apple Red laquar. Maybe 25-30 coats, hand rubbed to a deep and lusterous shine and several coats of clear over the top! Then I would use rich Corrinthean leather for the airplane saddle and handle. I would also include a small 12 volt refridgerator to carry only soft drinks and Perrier water in. Yes, this is what I would do.