Any competant A/C shop can rebuild them. I doubt you would be able to find new replacement hose anymore. If you cannot find someone to rebuild them for you, send me a PM. I can do them, but shipping across country is kinda foolish.
I had some hoses made at a hydraulic shop years ago. They charged me <$10 per hose and I recall I even got new fittings. Some people said their local NAPA store did theirs, at least until a few years ago.