Picked up a couple old dealership neons that were painted from the thirtys or 40's. My problem is that you can't hardly read one side that was facing up or to the sun, and the other is just plain worn. DO I just repaint as I did to one of them on one side and leave the other or do nothing and then looks like nothing there for the neon. The other alternative is paint both sides in which I believe is a tough call because why not just get two pieces of new metal. Prices have really dropped for recoated porcelin signs or touched up, where as painted tin is a tough call now. Do not want to reduce the value of these. Any thoughts ?