Elevators, pretty sure aircraft flying in Botswana are IFR equipped.
If you are talking Maun I would still say that there are IFR equipped aircraft, certainly some twins if there are many left and C208's.
Maintained and approved (released for IFR flight) might be a different story.
Not sure a IF ratting in the Delta is as good a insurance policy as it is in other parts of the World, but even if it is expired - it is a good insurance policy to have.