I took a trip down to Po' Man's Bike Dump, and found myself a date with destiny for $20:
It wasn't what I was looking for, but it's what I got. They had some big trees topple over in the hurricane, so most of the dump is inaccessible. At any rate, it's all there: low budget Suntour Accushift, Lee Chi Sine Power brakes, and plastic brake levers. Perfect! I'll give it an overhaul this weekend and try to go the 100K in one shot. I don't have a lot of free time for riding these days, and to be honest I don't want to spend it riding this!