I have always added the factory cruise unit to anything I got, that did not have cruise . . . kept going through the wrecking yards for the components : Servo, Servo bracket, lost motion link on the carburator, wiring - including brake switch and turn signal stalk switch . . .

Have quite a few of the servo's that didn't work when I tried them. Never thought of taking them apart. You could get the cable as a service item . . . as for the rubber diaphram - if it does have a hole, then why not fix using a rubber patch ??? I am pretty sure most of the electrical stuff, held up well on the servo's, so it would probably be just the rubber diaphram issue ??? . . .

Mark