Oh, Happy Days.
Finally found an open appointment slot - a single one - and booked it. In a turn of luck, it is just about a perfect time as I will be in Thailand for a couple weeks prior to assist with the last minute items (Medical, Police Record) and make sure all is organized.
I rather belatedly realized they changed the entire website for booking appointments. I can't believe that was not better communicated. And the new website is not a whole lot better than the old one.
It took quite a bit of effort to get our info over into the new site, including having to send a message to figure out how to import our interview payment proof. But all is finally ready.
I will be scouring the site for info on how to schedule and organize the final steps.
From memory, he needs an updated Single Certificate from village, a visit to get the Police Record check, and the medical. I think that is all that is left, except organizing and copying everything he will need to bring to the interview.
Exciting!