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...I have one of these that I restored as a rider. It still has the original components. I'd love to be able to sell mine for 6 hunnert bucks, but I think maybe that's not realistic. Curious as to why you'd want to buy just the frame ? It's a fine rider in the tradition of Japan made bikes using Tange or Champion tubing in the early 80's, but other than that is unremarkable.

IOW, at the time it was specced, imported, and sold, it was a pretty solid deal for a decent Crit bike. But for that price these days there is a lot of stuff hanging around on the local Craigslist. 600 bucks buys a lot here in the sf bay area, and we're supposed to be pricey.