If the cones, not the cups are pitted, you may want to try this;

1) Disassemble the front axle (cones, washers and nuts)
2) Degrease all
3) Wrap a couple layers of duct or masking tape on 2" of one end of the axle
4) On the other end of the axle, mount one nut, a cone and the other nut
5) Tighten the nuts against the cone, not too tight!
6) Gently mount the taped end of the assembly in the chuck of a drill.
7) Tighten the chuck on the taped end of the axle, not too tight!
8) Have a friend hold the drill.
9) Roll a 2" piece of 600+ grit waterproof sandpaper into a pencil shape
10) Oil the paper
11) Fire-up the drill and carefully bring the pencil-o-sandpaper in contact with the cone.
12) Remove as little metal as possible, while maintaining the approximate curve of the cone.
13) Repeat with the other cone.
14) Use #25 bearings and lots of grease on reassembly.

I've brought many cones back to life this way. I hope this helps!
Post some pics if you can.