Also, about your bottom bracket. Depends. Assuming you find a correct crankset - if you use a no-lip Campy front derailleur (pre '77), then the spec'd spindle length was 112mm. From post-lipped '77, it's 114.5mm (most call it 115mm). Use of the shorter spindle with the lipped derailleur = rubbing the backside of your early crankset. Correct Campy units sell for anywhere from $25 and up on eBay, just bid cheap on a lot of them 'til you buy one. I've had to grind out interference in the middle of my older BB housings to install sealed units, but it can be done. Look for Campy/ISO taper, not Shimano/JIS.