Dave. I do that. 6 and 6. Plus or minus a couple weeks. I get 60 days exempt on arrival I hit immigration for extra 30 for 1900 baht. Then I take a bus trip for a day pick up another 60 plus 30. That’s 6 months. No visa, no savings account.
Silence is golden. Duct tape is silver. Direct deposit in your USA bank. Suck it out via wise or remetly as needed. If they know your our more than 6 months you’ll lose part D for any medicine you need. Don’t announce your plans out loud.