Since you asked, I have been in the Vintage Audio thing for a couple of years now. Here is what I currently have:
Receivers (all 1970s):
Pioneer SX-1000TW (first Pioneer solid state)
Sony STR V7
McIntosh MA 230 (early 60s, SS/Tube Hybrid)
Onkyo M-504 (mid 80s, I think)
McIntosh MR-65 (early 60s, Tube, Mono)
Rega Planar 3 (1977?, but upgraded)
Knight KG-12 Multiplex Adapter (Tube, 1960s)
Acoustic Research AR-2ax (1971?)
Klipsch Heresy (1981)
Klipsch Cornwall (1981)
Recently Owned but Since Sold:
Klipsch Heresy (1979)
All above average to excellent condition, all 100% functional.
Do you have a budget in mind for a vintage 2CH set-up? Music preference Pink Floyd and other 70's rock?