Actually Sinkieland and Malaysia should have some variation of the EU 'Schengen' arrangement which eliminates the need to use passports at the cross-border checkpoints.
You will save a lot of money and hassle.
And patriotic Sinkie gongkias, no need to fearmonger about 'security issues'. Terorrists, murderers and scammers had fled Sinkieland and escaped to Malaysia over the years, and had it not been for the Malaysian polis, they could be still at large today.