The stock LeTour sold for around $350 in the early to mid eighties. A bare frame in decent condition is currently worth maybe $50, so the value of the bike in question is dependent almost entirely upon what model of Campy stuff we are talking about, how much of it there is, and what kind of condition it is in.

I would tend to guess it would be something lower end, pretty well used, and consequently not worth all that much.

As far as carbon wheels/rims, no. They did not exist at the time. The earliest disk wheels did come out at the time, and were made of something called "metacrillium", which was simply aluminum on a funky honeycomb core as far as I could tell.