I hunted with
http://www.kalahari-rangers.com It's in the Northern Cape. Has camp guns available - Blaser, Scope - Leica. There is really nothing around except the border crossing into Botswana at McCarthy's Rest, which is on that property. The Botswana fence is the property line on one side. Way to the back the property, the RSA military does have a radar tower on the property. You fly into Kuruman and about a 2-3 hour drive from there. Nearest town is Tsabong in Botswana. It is high fenced and you will see them as its only 24,000 continuous acres and crossed fenced. However, No traveling to concessions, you hunt and stay right on that property. You deal directly with the landowner. The animals you hunt are born on the property, and the owner does not supplement feed, but does water. He does not bring in stock to hunt but, he does have a breading area where he raises game to sell and has some horse and mules too. Nothing around to sight see, it's the lodge (which is very nice) or hunting.
There are plenty, of outfitters that Hunt in Limpopo. It's popular because its close to the JNB airport. All will be high fence. You you don't want high fences in RSA you will have to look at some of the Greater Kruger places, but get ready to pay top dollar.
