There is insufficient dimension given to do proper estimate. High level, I think RM150k at least but I were doing it, it will be RM400k! Almost all the items the price can varies from low to multiple times higher. Examples: do you need inverter aircond $, do you want imported tiles $$$, do you want nice switches? $$, what kidn of lights? LED? $$, etc etc.

If you are going to put new alarms, furnishing, curtains, tv, etc. RM150k is also not enough. It will be more like RM250-300k. If you are fussy type than RM400-500k