Joined: Apr 2006
Posts: 3,226
Likes: 734
From: Sacramento, CA
Bikes: '64 Bianchi CDM, '62ish Altenburger Cinelli Mod B, '63-64 Cinelli SC, 69 Rene Herse Competition, '71 Gitane SC, '73 Cinelli SC, '73-74 Colnago Super,, '73-74 Cinelli SC, '78ish counterfeit Confente, '82 Medici Gran Turismo, '67ish Mondia Speciale
You should be able to pick up the front derailleur and shifters relatively inexpensively. A lot of us here have extras.
However, period correct brake levers and wheels will definitely cost you. It might be a good idea to just pick up some inexpensive, non-Campy, brake levers from ebay or locally. And, picking up a non-Campy wheelset locally is definitely the most cost-efficient way to get that bike back on the road. Search to see if there's a bike co-op nearby, or if the local stores have any spare old sets lying around. And, you could always pick up a Japanese bike on your local CL for $50-75 (if you're lucky) that would have decent donor brake levers AND a decent wheelset.
Best of luck to you. And, congrats, you scored a beautiful bike. Enjoy it.