Dont go to that shop...
Verify charge voltage.
Reman starter/alt fail all too often

... Check the cablings, verify that the starter solenoid gets juice as problem is on (needs some kind of tester). If voltage is present and main cables ok, starter solenoid and/or brushes fail. I guess it has some warranty?
U can find drawings & whatever if u follow Favorite Links, clic below
http://www.cardomain.com/ride/748507/5