Hi Kerrycharles,
Well you have certainly covered the options in terms of potential choices.
Management positions will have a focus on solving applied problems preferably in a short time frame. So thinking you can progress academically in a management job is an illusion unless you are prepared to work all night every night to keep up and fluke your study choices so you get good robust results promptly.
Most management positions will have a report writing component. In fact if you find a mangement job that doesn't have an office component I can think of quite a few DOC colleagues who will race you for it.

I've no experiencce of how it works in Africa.
Good luck
Bruce