Why not arrive on a 30 day entry.... Apply for a 90 day non 0 after a week ..Run that down to 30 days left and apply for marriage visa. No big deal, the paper work easy as long as u have that seasoned 400 thousand in Thai bank account. Takes the insurance problems out . What u do with health insurance then up to u. If u want advice on health insurance contact amarak namak on Facebook, she will take care of any insurance needs. My personal opinion it is easier for u to do inside Thailand. Only my opinion.
amarak namak, u can contact on Facebook deals with ASC, Luma, AXA u will get a policy to suit in 1 hour of contact for 120 euro for 3 months. 150 k insurance covid and health cover plus baggage cover. She will get u cover to suit your needs and she is always available if u need any questions answered.
the list of requirements have changed , I went yesterday. They have added... Any birth certificates of children, change of name paper of your wife,
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family photos and a map of where you stay. ... And some paper connected to the marriage papers I had to go get from banglamung. This was jomtien immigration when I turned up with bank letter of funds, house book, passport, wife's id and bank book plus marriage certificate. Going back today