Just leave<
i assume u have the 800,000 in the bank? if so, go to Phnom Pehn (Use the agent "call kim" ), Vientiane or Yangon and apply for a Non o visa, all u need do is show ur thai bank book ( update it the day before u leave) an passport
apx $60-80 3-4 days
than return to Thailand and after 2 months apply for ur 1 year extension.
OR
leave for 1 night, come back on a 60 days visa exempt , after 30 days apply for the 90 day non o Visa ( 2,000 baht)
after 2 months the 1 year extension>
Up to u