Just some more beta:
Approach: Follow tooth gully (in) the river. There is a short compulsory wade early on after which you can keep your shoes on. See attached pic for me with an unhappy face missioning up the gully. We had just tried to avoid the wade and wasted an hour in the bushes
Gear: Bring tat and a few long slings, as well as a light rack. The first 3 pitches can be climbed almost solely on pitons. The A1 (actually A0) bit goes free at 21ish. There are a bunch of unnecessary bolts on the top left over from some dude's arb tyrolean rig, but you can rap off them (yay!).
Strategy: You can actually do the whole shebang in a day. We drive to the park and slept outside the gate somewhere, and then started early in the morning. We were back in JHB having beers at the jolly at 9pm. We were quite surprised. I know that others have done it JHB to JHB in a day.