An interesting question posed by Lex Strauss. This is a topic some friends and I discussed after a trip to SA a number of years ago. The hunt was really enjoyable and quite successful, but it really could have been even more incredible with a tented camp. I’ll relate the story briefly as an illustration of what I believe would make a SA tented safari successful as opposed to just a gimmick.
Our group was hunting a really mixed bag of animals that required a broad diversity of habitat and both day and night hunting. Some of the animals were not available on any of the properties owned or leased by the outfitter. Here’s a short list of some of the animals desired. Mountain Reedbuck, Klipspringer, Kudu, Serval, Caracal, Civet, Genet, Honey Badger, Water Mongoose, White Tailed Mongoose, bushbuck and some other fairly common plains game.
We ended up hunting mountain country in the Waterburg Mountains and low country that consisted of a mixture of thorn scrub typical of the Limpopo and cultivated land. The outfitter had secured permission to hunt multiple properties in both the mountains and the lowland area totaling about 30,000 acres in the mountains and probably close to that in the lowland. This area was about 3 hours drive from the outfitters lodge, so not an option for a daily commute.
Several of the properties in the mountains had unoccupied homes on them and we used several of them to stay in or grab a shower but had to bring all our own “stuff”. Over the course of 14 days we just camped out in the bush most of the time. Build a fire, have a braii, throw down a sleeping pad and a blanket and grab some sleep. Stop for lunch, make some sandwiches, have a nap and go back to hunting. It had a really unique feeling of “adventure” without any real camp or lodge and I truly enjoyed it. But it wasn’t without it’s challenges, such as dealing with game as it was shot. After a couple weeks of this, a chef prepared meal, shower and comfortable bed were quite welcome.
Back to the OP, in my opinion this would have been an ideal situation for a tented camp operation, even it were quite a bit more rustic and not as “full service” as what most safari outfitters provide. Having a fixed base with some infrastructure such as kitchen and cook, shower, skinning shed along with a tent and cot to crawl into would have been about perfect.
Punchline, and I’m going to be very blunt and direct - no offense intended, if the intent of an outfitter was to attempt to replicate the experience I’ve personally had in Zimbabwe and Mozambique in a tented safari camp, my answer is a Hard NO. Unless you’ve got 100,000 acres with free ranging lion, elephant, cape buffalo and leopard I think this would come off like trying to sell knock-off ladies hand bags. However, if the intent is to offer a unique, value-added experience that helps keeps costs competitive and you are catering to clientele that want to rough it a bit and maybe participate more actively in the camp/hunt, I think there might be a real market for that. If it felt a bit more like deer camp in north America, but was a safari in Africa, that might be kinda cool. Certainly not for everyone, but done right I bet it could work.
I didn't say guinea fowl couldn't be made edible (note I deliberately used the term edible which encompasses all sorts of potential offerings where taste is secondary). For instance, I have had it as the basis of shepherd's pie where it made a reasonable imitation of poor quality beef. I also do not do organs. The last thing I want to see is some dish perfected by the PH's Boer grandfather utilizing wildebeest entrails and the like. 
And liver reminds me more of a sewage filter than anything I care to eat.
