Sure. Campy never makes noncompatible parts at different price levels. They've used the same 4/1 brake lever ratio for a very long time.

Personally, I would never waste money on SR parts. The only one that might be worth the money is the cranks. The rest have trivial weight reductions for big money. The shifters, for example have one part made of Ti that saves about 10 grams per pair. Record and Chorus shifters are identical except for the graphics.