IMO South African hunts are more of a social time and a shoot than an actual hunt. You might hunt a 10,000-40,000 acre area or whatever, but it's still fenced. There are roads throughout the property so finding animals from a vehicle is fairly easy. Some animal such as warthog, baboon or small antelope can find or dig holes in the fence so may be wild. Depending on the terrain it can be easy or hard to find the animals.
We actually drove by what was I guess the main place that outfitters buy the animals for their ranch. Much like a huge rural sale barn for cattle. they would go buy animals there. If you wanted a special animal such a as a "golden wildebeest" they were priced separately. Color rarities and 40 inch cape buffalo were like $40,000 if I remember correctly from the brochure. We didn't do any of that, but the PH was showing us how it all worked. One night at a neighboring ranch we actually helped unload a cattle trailer full of gemsbok. They had plastic caps on their horn tips so they wouldn't get broken in the trailer. They were pulled off from above prior to releasing from the trailer into the "wild".
Not trying to discourage anyone, as it is an interesting part of the world and new trees, terrain, and animals but don't be fooled into thinking it's some type of hard hunt.