How can I expedite getting a 12-month extension on a Non-O visa for retirement in Thailand?

I am planing to get a 90 day non o visa in Australia ,come to Thailand open a bank account,put 800000 baht in account and apply for 12 month extenion based on retirement. I have been coming to thailand regulary over last 2 years on tourist visas for 55 days at a time 2025 3 x .With crackdown on people staying over 150 days i thought its time to get a long term visa

My problem is I dont want to spend 90 days in Thailand to setup the non o visa as getting doctument together to open bank account together then transfering money

Waiting 2 months after money arrives to get extension if I hit some snag along the way will take almost the full 90 days

Any suggestion how i could achive a 12 month extension in less time

Ideally i would like to arrive get a lease on on an apartment open a bank account transfer money return to Australia for a month then return on a new 90 non O and

Extened for 12 months as my 800,000 would had been in bank for 2 months.