Keep it at home and well invested. Making 8% on your money would pay you 64k baht equivalent EVERY YEAR. Which more than covers paying an agent 17k annually to do all the work for you
so essentially, you didn't retire. You were unemployable and got govt benefits like many americans. DTV is easy enough if you want. Surprising you can train muay thai, but can't work. You can use agent in thailand if you don't want to deposit the 800k but that is for over 50 only. DTV is only real option