where to get RB ?

ohh i so want to get a ray-ban wayfarer original 2140
i know they are kinda old news but whatever they are classics and i like em
AND mary-kate olsen has them so i NEED to have them of course :)
but i dunno where to get the real ones
don tell me to get it online
i am from Singapore so if anyone has any idea where to get them in SG drop me a line.