Before 60 no health checks ,at 60.it gets way more expensive !!!!
Also BUY nothing for two years !!!!rent is so cheap and you have control as you can leave at at By time ...building a new high rise beside you ,a new karioky bar ,20 barking dogs ,a pig farm etc etc
You value things based on home prices ,but when you sell its Thai prices .
You nothing about Thai rules ,noise ,building quality etc etc .
lIVING is nothing like holidaying !!!!
Best bet ,get a multiple entry tourist visa and go for 9 months .