I ran across one of these pumps today. It's complete with new sheet metal professional made with the rivets just like original. Cylinder is gone of course. Still has the gallon markers. 1 and 5 gal markers look great. 2,3 & 4 markers are a little rough. What would be a good price for this pump as is ? Also what's everyone's opinion on what this pump would be worth with a high quality restoration? Thanks