check with Aeroquip? I have not tried that yet but, I read that they can put fittings in the portion where the hose attaches to the metal so, the next time you have a leaky hose all you have to do is replace (unscrew/screw) just the rubber hose. Price is suppose to be similar to just replacing the rubber hose. They should be in the phone book.
As stated before, you may also want to convert to r134. This is the perfect time to do it.
Let us know what happens!