It's steel and in Banesto colours so dates 1993 onwards- to better id the model you need close-ups of the following:
Head badge
Rear brake bridge
Junction of rear stays with seat and top tube
fork crown
bottom bracket area
To better id the Campagnolo groupset..... pic of brake levers, calipers, rear derailleur....
Even if it turns out to be a lower end Banesto replica, that's still a good price...and it may turn out to be better. Have a look at the Banesto threads on retrobike I've recently contributed to you and you'll get a clearer understanding.