Those old carbon forks can get scratched up pretty easy. If it's all black carbon, rather than painted, you can wet sand off all the scuffs and refinish with a can of clear gloss polyurethane. Make it look good as new.

A new fork would probably (but not necessarily) be a couple hundred grams lighter. I was shopping carbon cyclocross forks on the big auction site the last couple weeks and the advertised weight varies a lot. Caveat emptor.