that makes sense. unfortunately, IMO of different provinces will not accept continuity of your visa, you have to re-start your visa again. Same as for retirement visa.
apply for a non-O (OA visa) where you are, you will need to purchase healthcare cover too. If you arrive on a TR visa, sure you can do the non-O in Thailand but you will need an agent to help you sorting out banking stuff. TR visa holder cannot legally open a thai bank account. You have to show fund in your thai bank account for no less than 800k THB. No insurance required if you do this in Thailand.
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