@Edward *******
WHAT ARE YOU UP AND ABOUT?? Stop posting nonsense!
You can apply for a 90-days Non-Imm-O Retirement visa in your home country. There is no mandatory health insurance, no police record, no medical proof.
Once in Thailand, you immediately open a bank account and transfer a minimum of 800,000 THB into it.
Then from up to 30 days before the 90-days stay permit expires, and the money has seasoned for 2 months, you can apply for the "1-year extended stay permit based on retirement".
I cannot recommend you start your longstay in Thailand on a Non-Imm-O/A visa.
You will regret it as soon as after two years, when you need to move from the visa to the extension of stay permit, and that's when they make you contract a worthless but mandatory Thai tgia-listed private health insurance, and that's when you will need 800,000 THB in your Thai bank account anyways.
You are ALWAYS better off to start with a 90-days Non-Imm-O retirement visa you got issued in your home country.
On this visa you can easily open a Thai bank account