I'm trying to decide whether or not to sell my TREK 710. What is it's approx value and where is the best place to sell, CL or eBay? 1979, 22.5" frame, original paint with scratches, etc. Campagnolo NR hubs, headset, BB, crankset; Superbe front and rear derailleurs, SR Royal stem and Custom bars, Ideale 90 saddle w/SR seatpost, Gran Compe NGC 450 centerpull brakes and levers, new Continental tires. Thanks.