Have to back Bryanna on this one. As a non Muslim married to Muslim from Indonesia (and the laws are nearly identical), it’s is pointless to try and obtain legal married status in an inter faith marriage. Having lived in Indonesia and Malaysia, even those married legally outside of those countries can not gain legal status as a married couple if not of the same faith (and in fact it difficult for even Shia and Sunny to enter marriage). And that’s in the moderate regions of those countries. In the Sharia dominated regions like Aech, inter faith would result in a public caning. So no, it’s not a viable option, despite what the law may or may not allow.