some agents will provide the 800,000 bht but for a fee but this could come back at you and bite you on the atse because technically speaking this is to show you have enough funds to support yourself in Thailand
I'm moving in February to live from Australia taking my dog using a pet travel service costing $4,000 Australia can get cheaper but this includes them helping me with all the paperwork at the bangkok end just take note it's normally a 1 way trip