I'd guess that it is a mid-range model because there is no chrome anywhere on the frame and because I think I see a Columbus Cromor sticker on the frame----ask the seller what type of tubing the frame is made from. And Mirage is a low tier Campagnolo group. However, the $450 asking price isn't too bad since the bike and components appear to be in pretty good shape.

It has been listed for nearly a month now and winter is just about here, offer him $300 and see what happens.