Thanks very much to you both.
The previous thread I began dealt with the difficulty of getting a multi-entry visa.
This enquiry is simply to check whether I would have any issues entering the country on a non-O without an onward flight.
I have resigned myself to keeping at least 800kB in my personal BKK Bank account at all times.
Assuming I will need an up to date bank book for this task. The book I opened the account with may well be lost unfortunately. Also the branch I used to open the account has closed. I assume my Thai gf will be able to sweet talk another branch.
Apologies my vocabulary was a bit loose. I hope to obtain a multi entry extension to my visa after 60 days.
Will this give me a year following the application (ie one year + 60, 70, 80 or so days), perhaps one from entry or even one year since visa issue?