Others will ask for possible information about type of tubing and things , but the bike is worth $400 -- thats not a great "buy it and flip it" price, but thats a nice price for a rideable BAsso with a Campagnolo Victory build
You can check the seatpost, if its a 26.8 it may be a Tre Tubi , or Aelle or Cromor bike, --- if its a 27.2, could be an SL bike -- either way, its worth it but most will say that a TreTubi or Aelle bike is not valued as high