Originally Posted by
Bianchigirll
I agree I would use Barcons or even something funky like a thumbshifter.
It would look weird but I would leave the stops on and use the clampons, if they don't interfere witht he cable. Most bikes with clampon shifters had a little brazeon of some type on the bottom of the DT to help prevent the shifters from slipping.
+1 on this advice. I'd leave the frame original.