It's worth more if you disassemble it and sell all the parts individually.
Right now it's a bike with flat tires. You'd have to pay to replace those and be out around $100. And then try to haggle with someone like the guy above for $350 to net $250?
Screw that.
Think of it this way:
frame/fork -- $250
wheelset -- $80
shifters -- $40
brakes -- $40
crankset -- $40
seatpost -- $50
stem -- $30
handlebar -- $15
brake levers -- $30
derailleurs -- $60
pedals -- $20
freewheel cogs -- $25
bottom bracket -- $15
headset -- $15
saddle -- $5
So those are all pretty conservative prices, and they have you over $700, but I think they depend on marketing it on some platform like eBay that would charge you fees. Net, conservatively, $600.
And I think the prices I listed are to sell pretty quickly -- you could probably do considerably better if you're patient. Don't do auctions. Few people these days want to mess around with bids and waiting days for the results. Research and list each part for what you think the market might support and accept offers.
Campagnolo parts always have a good following.