I don't know about the repairing cost. But i suppose buying a use alternator will be much cheaper and better solution.
Localised material will not last as long as original materials from Japan, sad to say that.
what is the problem if RPM meter giving the wrong reading?
my car is suzuki vitara
sometimes when the car engine loud sound (means high rpm) but the rpm reading only 800
almost every time it gives the wrong...