531 tubing and campy drop outs are big plusses.. if these are actualy nos, then it seems like a good deal. you cant beat 531 for a smooth ride
You might want to post a message to the classicrendevous.com mailing list and see what they have to say. Its still a bit 'new' for them, but they should still have a slew of info for you. They should also provide good leads for nos and nice used period-correct components if your interested.
Good luck with your project!