I strongly suggest ignoring the negative or discouraging comments. There is a certain faction of financially comfortable foreigners (mostly Caucasians) in SE Asia who want to flaunt their coinage and mock all adventurers who are of lower monetary stature.
I recommend discussing options with a reputable agent and I’m confident you can live a great life here. 👍
What are the requirements regarding the deposit of 800,000 baht? Cash only? Or can it be transferred electronically from an account outside of Thailand? Thanks.