I'm going to use the 65,000 baht per month method, assuming they will accept what I show them. But I am also going to keep that 800,000 baht in my Thai bank account even if I have no problem about the 65,000 baht method because who knows what they will or will not accept next year? There are no engraved in stone rules yet.
I won't feel totally secure until there is a clear standard and it becomes a matter of law.
EDIT: Damn! The post is showing the wrong time and should have appeared after Dodger's post below. I posted it at 9:54am, Thailand time. I thought that problem had been resolved. WRONG!