Next bounce you might consider flying from Phuket to KL. There’s a morning flight and an evening return. Costs about the same and gives you a day in KL plus, if you get the wrong stamp on the way back you can fix it in Phuket. Has to be better than sitting in a van all day.
The airline you use from France may want to see confirmed flight out of Thailand within 30 days (as that is how long you’ll be stamped in for on arrival) if you have flights booked to Vietnam, or any other country, within that time frame, just show them when checking in in Paris.
Your knowledge about this subject is second to none. The amount of time and effort you have put in in order to reach the high standards you set in this group, and in ‘real life’ is, as far as I can tell, unprecedented. Actual, real, solid, tried and tested, information about this subject is invaluable, and for some clown to go as far as they have over a deleted comment is just ridiculous.
Please keep doing your work here for as long as you feel you can.
Each entry will get you a 90 day stamp. It’s valid for a year so every time you enter Thailand whilst it’s still valid, you’ll get stamped in for 90 days.