Joined: Aug 2011
Posts: 2,185
Likes: 2
From: Canada/604
Bikes: Giant Defy with Dura Ace group, & Ksyrium SL's,Specialized Allez Shimano mixed/mashed,2011 Opus Sentiero,2008 Kona Jake the Snake,Custom built track/fixed,Stumpy Hartail,Kuwahara/ET bike.
If you get the $150 you say you can get for your bike, save the money spent on new 700C rims, compatible brake calipers, tires,etc.
You'll have more than enough to get a nice used bike that you won't have to tweak so much.
Wheel+tires+brake calipers,levers,tires, etc = +$400(for new gear) or close to $150-$300 for used gear in good condition.
Just a few things to think about.