I did it in Bangkok (followed by registration at catsip) but that was 2012, no idea if it is possible anymore. But since the op seems to be okay with converting, then he might as well do that since it is easier and cheaper.I remember another member went down the SG route but you have to stay there for 30 days or something
And another member a woman if I recall did it in Bangkok
But it's a lot different these days