My winter/trainer bike really really needs some upgrading. I've put a bazillion miles on my 1997 105 Triple group. What should it cost me to go to the 105 9-spd group (no, I don't want the 10 spd). I'd need a BB, the f/r ders, brake calipers, shifters, chain, sprocket and head set. Oh, and a reasoable new handlebar for my quill stem too.