Could be as hight as $600-$650.
Paramount is a sought-after bike, has a popular brand appeal.
Generally, excellent components.
With a view towards quality, the bike should be well-made.
Older Paramounts with Nervex lugs command a premium over the newer ones.
Many of the PDG series fans are such because of the steel frames.
Older CF bikes tend to generate apprehension in buyers.
In general, what you have is a 1992 STI/Ergo equipped bike, which should be 8-sp and have good components. Depending on your market area, these go from $350 to $550. There are a lot of aluminum models in the later '90's that will sell for the same price.
Specifically, yours should have better than the Tiagra/Sora/105 level components that a lot of those aluminum bikes have, so that's a plus. It's a Paramount, and that's a plus. It's older carbon fiber, and that market niche is small, as there exists a market apprehension about the ability of the frames to hold up.
In my opinion, the Paramount name, component quality, and uniqueness of the bike would tend it towards the higher end of the range I offered before, maybe higher with the right buyer.
Friends don't let friends drink and wrench.
1985 Raleigh Competition Racing USA Series
1987 Bridgestone Radac
-Aluminum by Grant Peterson
1988 Centurion Dave Scott Ironman Master
1989 Centurion Dave Scott Ironman Expert
-yes, it's a disease
1989 Centurion Carbon-R