From what I've read it isn't a good idea to teach illegally or teach with no BA in Korea. You can get tossed out of the country for teaching black or you may end up teaching as an assistant in a dung patch with very low pay. Maybe you can get over to China and take an ESL class, from there you can go to many locales to teach. Maybe get a Celta if you can afford it and the cert will take you to different places. you won't have to wait 3-4 years cuz the classes are only 6-8 weeks, but they can be pricey.