If I remember right there was one GA aircraft in all of Vietnam before I left 7 months ago. It was a King Air owned by one of the richest, or richest, guy in the country. Flown by a famous ex VAC pilot who bombed a South Vietnamese government building during the war. He had been a spy for the North in the S Vietnamese Air Force.
If you have all these credentials, you might be able to fly the second GA aircraft in Vietnam.
LOL