As salamu alaikum Nu...
Being a Muslim expat married to a WONDERFUL Malay woman, I thought I would respond to your search for information on marrying a foreigner.
I am assuming that you have actually met this gentleman and done your DUE DILIGENCE to confirm that he is who and what he claims to be. If not, then I would urge you to take a step back and do that because far too many Malay(sian) women have been scammed by:
a) Nigerians pretending to be handsome, professional white guys and asking women to send them money.
b) Married/separated men lying that they are single.
c) Men who will agree to convert in order to marry but who have no real intention of becoming practising Muslims by getting their "potong", and/or giving up their alcohol, pork, and other non-Islamic likes.
d) Men with "baggage" that they haven't been forthcoming about (e.g. debts, mental issues, emotional issues, toxic ex-wives, etc.).
If you have not met this individual yet and have only ever dealt with him via social networking (FB, LinkedIn, dating website, etc.), then the due diligence becomes IMPERATIVE.
Please note that I am not making any presumptions about your relationship with this fellow, or any judgments about who he is and what his intentions are. My intention in responding as I have is to just be a reminder about doing your homework so that you can protect yourself from harm or heartbreak.