I just picked up a 17 in Trek 520 frame circa 1992 hopefully a real steal at $36 + shipping. I plan on building it up as an excersise in learning more about bike mechanics. I am looking to you all for some expert advise on what components are best suited. I really do not plan on any unsuported touring but want a rig other than my Dale or Mountain bike to pull a trailer on the MUPs or ride an MS 150 type of event. Of course any free or cheap parts from your garage bins would be most welcome.