that is an extremely confusing way to say you must do the 90 day report in the area in which you either live, or had a TM30 done for you. I Have not had a visa, nor extension, done in Thailand. Your comment would mean nothing to my situation, and it sounds like, the OP's situation.
you cannot 'retire' in Thailand for "2 years". You cannot use funds in your old countries account/currency to get an extension for ANY non-immigrant visa; O or O-A.