I have that exact same model from the same year (in 54 cm). I'm in the process of building it up with more modern components. I got mine for a lot less off the Harrisburg Craigslist earlier this year - but I practically stole mine.

You will possibly never find a vintage steel frame that's lighter. I think the asking price is a little bit high, but not outrageous. It's worth checking out. If you like it, it's a whole lot more bike for the money that anything you could buy new.