Korea To Thailand

Hi, I'm coming to the end of a stay in Korea teaching English and am pretty set on moving to Thailand after my contract is up. The problems are: my degree is BEng, not BA and I have no TEFL qualification. I do have experience of teaching English in Asia though.

I want to do everything as legally as possible when I get there, but I'm getting a bit worried about some of the things I've read about needing a BA and a TEFL to get a WP. I was wondering if anybody around has been in a similar situation, or knows anybody who has before. What are the chances of getting a WP, teachers licence, non-Imm B etc?? I think my experience will help me to get a job, but what about the documents, will it be taken into consideration with getting those?

Thanks.