3. If it's a 56cm frame, I'll pay $100 plus reasonable shipping....
But seriously, probably worth rather more than that. Sounds nice. I have a similar vintage Nishiki, Tange #1 tubing, and full Shimano 600EX classic bike gathering dust in the garage. Too classic to ride, and the frame's a little large for me. But I can't seem to gather the will to sell it...