Been there, done it, and got the video, figuratively.... but Jomtien, not CW, and farang wife, not Thai.
To paraphrase, two non-Os, entered 2007, at first used embassy letters, soon got tired of that, 800,000 each in two bank accounts. Saw there was no need to tie up so much money, went for marriage. We thought two accounts, 400,000 each would do the job. Told no, one partner must hold the 800,000, the other does not need any!
For reasons that are none of your business, we decided SWMBO would hold the 800,000, I would hold none.
At the first subsequent extension a mistake was made, by immigration:- they stamped me as lead with retirement and she as follower. This was ok until the next extension when it was noticed! With remarkably little fuss, and no cost or penalty to us, the previous extensions were cancelled and re-issued, then new extensions issued correctly. Half a passport page gone!
Several renewals of extension since, no problem except ingrained cultural disbelief that SWMBO is lead and I am follower!
No questions ever of home visits, maps hand drawn or otherwise, photos etc., bribes, or hassle outside the norm.
But I accept that a Thai/farang marriage may be treated differently!