What steps should I take for immigration to Hua Hin, and is a hotel's TM30 enough for my bank account and Non-O renewal?

My steps for immigration to HuaHin

Everything is slowly falling into place. I plan to book a hotel for the first few weeks and then look for a suitable condo. Last time, I stayed at Kian Haad, near Market Village. I think there are better options. So any hotel advice would be welcome.

However, I still have a few questions.

*Is this address acceptable for returning the embassy affidavit?

*Is a hotel's TM30 sufficient for applying for a bank account and renewing my Non-O?

Thanks for your advice.

Ludo