A friend of mine is selling this '73 TX650 that's been sitting in his garage for a VERY long time. If I buy it I would just want to make it usable while changing very little. It has a little over 11,000 miles. Engine is free and there's some rust in the tank. Maybe it's just the time of year, but I can't find any other '73 TX650s for sale. What's something like this worth? I can do most of my own work.