Non-O and Non-O A are both visa for retirement. Non-O based on marriage with Thai is also an option. However, Non-O A is not recommended because of required border run every 90 days.
Several years ago, I tried to do it at the local police station without any result. They had no idea what I wanted and what they should do. This was at an adjacent Amphoe to Buri Ram city.
The Internationaler Führerschein is only valid in connection with the national driving license. It has always a biometric pass photo of the driver inside.
National driving licenses are not necessarily accepted in other countries. It depends on country of origin and on the foreign country where the national license is used.