I would also agree with what Danz and Neuro says. It would be less maintenance for you to take care of... but if you still prefer the auto box then you might need to go and consult a few workshop around.
RM1600 is cheap bro, if compared to mine ler... hahahahahhh. Much cheaper i would say...
But then yours is SEi and mine is V6, not sure if it's using the same gb or not.