Had an account now for maybe 10 years in Na Klang Nongbualamphu absolutely fantastic bank, I had to sort out my phone number last year but no problem a bit of paperwork and a new photo
You get 60 days on arrival, you can then go to your local immigration office with passport I always have my TM30 in my passport, not sure of the cost if there is one
When you go and get your list from immigration ask if you need a witness, I turned up with everything they needed but no witness, no one told me about that.
I did my driving license yesterday take everything in that you said, they wanted a copy of everything passport data page , visa page,yellow book, ID card the lot and 1310baht, don’t forget to ask for your motorcycle license as well, sorry I forgot you will need a copy of and the original of your IDP(international driving permit)