I have a set of 68 Rally Gauges that I will not be using, as my car is a 67 and I have a set of 67 Rally Gauges. They need refaced, as some of the numbers on the speedo are gone, (bad cleaning before I got them maybe?) Are they still worth anything, with the 68s now being reproduced? I'm considering putting them up for sale, or use for trading material, but not sure yet.