@Toby *********
I would say that
@Dannie **************
(y) makes a valid point. You have EXTENSIVE TRAVEL while you're trying to get from this 90 day Non-O to a year extension based on marriage AND the under consideration period too.
If all you have is a 90 day single entry Non-O, you might think about just slogging over to the thai consulate in Savannakhet Lao and applying for the year long, multi-entry Non-O visa <- that is tailor made for extensive travel
The visa is valid for a year, it's unlimited entry for that time, and each entry gets you stamped in for 90 days.
It's a bargain at 5000 baht and the application process is easy (they don't require proof of funds and only minimal documentation)
Think about it, especially given your travel plans đ