Naidu's place is opposite KWSP PJ, on top of the hill of the shell stations. Search "shell Jalan 5/35" in google map.
if not mistaken, workmanship + balancing was RM120. Parts price i need to check my receipt, should be less than RM200. You can call up Suan Huat to ask, center bearing set and coupling front and back.
Job involves, removing exhaust, take out long shaft, repair coupling + install center bearing + balancing (at machine shop), reinstall. Good to change your differential bush at the same time while at it if it hasn't been changed. Mine was shot so i changed it together.