Good news- a few months ago CAAB started to recognise class/ category ratings.
Pilots holding an EASA/ FAA/ CASA licence no longer need to figure out how to get a type rating that technically doesn't exist in their home country. South Africans and Kiwis still have to have the ratings prior to arrival.
However, this is Africa and you never know when the authority will change its mind. In my opinion, I'd still say it was worth it to get a couple of hours on type and your logbook signed by an instructor along the lines of "Joe Pilot has demonstrated competency in flying a Cessna 206 aircraft".