Just like to add a few words about Grand Central, it is indeed central, midway between Jo'burg and Pretoria, with SACAA 5 minutes down the road.
Flying is a challenge, the airfield is on the side of a hill with the threshold of 17 being 75 feet below the threshold of 35, which in turn has a threshold notice board "ELEV 5327".
I have also flown in the UK around Cambridge and Duxford, there is a World of difference.
South Africa is a very satisfying challenge.