As an "early attendee" last year at PF, I spent a part of a day in Knoxville. Of course, not being prepared, I couldn't find any cool classic related places to visit; couldn't find "shadtree mechanic" in the phone book!
FYI, Mid 50s has opened a place a little North of PF by about 20 miles so, even though they should be at the show, if you really need something that's good to remember. How 'bout 20% off for the plug, Sy?