Latest reports I've read were 2-3 weeks in Laos. Visa issued shortly after interview. Some people had luck emailing and requesting and interview sooner after they were given a date and time.
I have his original profile blocked, so I cannot even see what profile his nickname is tied to. Tod McGowan too. Actually I have a lot of people blocked.
Even if you book a flight for 90 days and can get the 30 day extension, the rules still say onward travel must be within the number of days you will be stamped in for, because an extension is never guaranteed. That's what the bus ticket is for, incase they ask you on entry. Or if your airline asks which is more often than immigration.
Your visa is not in your passport, therefore there is nothing to transfer. To enter Thailand you will need to use your old passport which matches the passport number on your visa, and then they will put your entry stamp into your new passport which is valid.