Jock: I'm pretty certain his name was Frank Brindley. I can't be sure about his being CFI of the Flying Club (I have a club badge somewhere, I'm sure, after our extended stay there) but I think he fulfilled all the other positions you mention. It's probably now safe to say that, once we had the first 2 aircraft serviceable and were waiting for the other 2 to arrive, we did a formation Air Test around Swaziland with Frank and a number of other locals on board. Very pleasant - I had some Super 8 footage of that once, but that too has vanished with the passage of time.
No pictures of the runway, but here's the locally produced TAP we all used, no Jeppesen or AIDU product being available, which I guess you will remember.