So what CPU Cooler I should go for.
Perhaps you didn't read the prior post, I meant to say nothing, the stock cooler will get the job done - provided you pick a case that has good airflow. Montech, Aigo/Dark Flash, Thermaltake and Corsair are brands you should access to being located in the Asia Pacific Region.
I'm assuming you've picked a CV series Corsair or a Thermaltake SMART or a Gigabyte PSU. If you're picking a badly built PSU for that build, then you might as well just save the money and not build a system to begin with since a badly built PSU can and will take out more than itself, read the innards of your system.