You will also find a number of sellers will be happy to provide owner finance. You pay an agreed deposit and make monthly payments for an agreed term. When payment is complete the property is transferred.
If you want 800k THB in your Thai Bank you can transfer from any UK/European bank into my UK/European bank. I will pay the money into your Thai bank. Best exchange rates for GBP and Euros with no bank fees. Drop me a message for more info.