Thank you Nongnuch. I always pay for my 60 days of hotels in advance, and I would do that if I stayed beyond my ‘original 60 days’ . And yes , I make a point of having cash on hand (for many reasons) . I would not extend my stay beyond 60 day without air reservations secured… I used the October 1 date just as an example because it’s so near . In reality I will be going to BKK on December 20, 2025 . Thank you for the good information 👍
Thank you kindly for your response and correcting my terminology 👍. On a sidenote, I did the scenario in June and July and when returning to BKK the new stamp was for 60 days after my re-entry . I did not expect to see that . 
Would you please share the website( and any advice) you used to acquire the Non O 90 day visa . I am a Floridian who simply wants to stay in Thailand for between 75-90 days. I am willing and eager to pay for the privilege to do so . Funds are not an issue, and would prefer to simply pay, rather than border hop, etc. Thank you in advance ..