I mirror IPhone using WIFI with Samsung TV and see all AFL games with the Watch AFL and have no problems. I use AIS internet unlimited cost 899bht/month
I have pink Thai ID it took one and half hours of phone calls by bank to receive 2nd Kasikorn bank account. It was much easier to get a bank account 2 years ago.
I only had lease and obtained COR able to obtain licence and purchase car before retirement visa. I used Laurie Chiang Mai visa shop never had any problems.
Paul what you write seems like a practical solution. Try it in real life. Pay 5000bht to agent problem solved if you have a 12 month lease or yellow book.