I am in the process of my first Steel frame / Campy build and have acquired an early 00s Chorus 10 speed groupset minus the shifters. Chorus shifters from this period seem hard to come by, I am wondering if the modern 10 speed shifters will work?
Powershift compatability is unclear.
Campagnolo still makes Record and Chorus second generation QS (not to be confused with Escape, where the QS means a front derailleur ratio change that came along at the same time the Xenon mechanism moved into the Centaur and below groups) levers. $270 for Record and $230 for Chorus from ribble including the cable set.
I bought a NOS set of 2010 Centaur Carbon Ultrashift levers which I've paired with 2004-2006 Record Titanium triple derailleurs although all those have been sold.