After you get the visa then you can do the ฿65k but remember it has to be 12 consecutive months for the ฿65k
Which usually takes until year 3 due to overlapping months from when it’s renewed to when you start the ฿65k deposits…the deposits have to show correct verbiage as well for them to be accepted by the I/O
So most people put the ฿800k in a bank acct and forget it exists until the yearly renewal date
One of the reasons they want to see the ฿500k in a regular bank acct is because the immigration/govt wants to make sure you can support yourself for the duration of the contract