I actually have an almost identical bike, with the exception of the decals being a tiny bit different.
The model is (of course) the Nuova Racing, Bianchi girl knows her thing when it comes to the years, but since she hasn't responded yet to the photos, I'd think 83-84. Serial number sometimes has the date as the last two digits. Could be on the underside of the bottom bracket, could be like mine on the seat tube. Value depends on actual condition. It's always more if cleaned up really nice, but obviously that requires time or investment if you can't do the work.

If you are in Denver and looking to drop it, PM me and we can work out a price. My father-in-law is looking for a bike like mine