Just got back to Thailand on a non-o based on marriage to a Thai. Apply for your E-visa first, very quick and easy to do, now no need to send passport to embassy. I just sent them a recent bank statement from an account with 2k in. For the accommodation side, sent them a copy of the wife’s blue house book and for the flight just a copy of a quote/itinerary
COE just as easy, all online, book insurance first, once pre approved you can book rest.
You may only need to book a quarantine hotel for the first night, things may change form Nov 1st