Thanks - I don't have 800k, so I meant returning on a tourist visa and paying an agent in Thailand to put up the funds (for a day) and apply for the retirement visa. I got the retirement visa this way without leaving Thailand from 2010 to 2020. Now I have an agent in Thailand quoting as follows:
"Non O immigrant visa is 20,000 THBA year retirement visa is 16,000 THB"
QUESTION: Why would I need both, or is the above just a silly answer to a silly question?