Barbarossa was taken over by Harken quite a while ago. You may find twhat you need vis-a-vis parts available through Harken. In terms of servicing the winches, that is not difficult. Take them apart piece by piece and take snap-shots at each stage with a digital camera that will allow you to see how the parts were assembled. Lay the parts out in the order of removal on an old towel and clean them in a bucket of mineral spirits, returning each cleaned piece to its position on the towel. It's not difficult and there are not that many parts. Lube the shafts and bearings with winch grease and the springs and other small ratchet parts with 3 in 1 oil.
FWIW...
s/v HyLyte
