What's the status of the application? Just CV drop off or interview already?

If it's just CV drop off then it can take a while because HR receives a lot of job applications everyday so there is a process for HR to review it first for vetting and then for the hiring manager to further review to decide if worthy for interview.

If you already interviewed, then it depends on how urgent they need the position filed and the number of other candidates that they still need to interview. Could be 1 week or a month - but you should have asked that question during your interview on when you can expect an update from them.

Usually the quickest way to get a response is if you know someone in the company that can help to refer you. At least your friend can email directly to the HR rep and the department hiring manager. Plus if you are an experienced hire, your friend can get a referral bonus and you can ask your friend to share the bonus with you.

Not sure if this is still accurate but I would think somewhere between RM2k - RM2.5k.

Yes, because you will be traveling to clients place a lot and they can be anywhere. A car would be very convenient unless you're lucky enough to stay nearby a colleague within the same team and that person is willing to pick you