Ok, in the end he opted for the surgery.
It will be done under 30 baht scheme and I am surprised he already has an appointment this month.
He will be paying around 15k baht and this is mostly for upgraded room and a nurse. He was supposed to do it at his local assigned hospital, but the hospital did not have the equipment and they wrote some letter stating that, so he got transferred to Siriraj Hospital which I understand is very good. If the hospital did not issue a letter the surgery would cost 100,000
As far as I am concerned he got faster service than in Canada.