I had a solo tour with MK and it was wonderful. The actual "tour" is really just private transport to the Sanctuary, but MK added so much more so it would be a real tour.
He told me about each area we drove though, and drove over the dam so I could see the beautiful view with a large waterfall. We stopped at a craft market for some shopping on the way to the Sanctuary, and he planned a lunch at the Lion Park after the Sanctuary visit.
The Sanctuary exceeded my expectations, and I got to directly interact with the elephants, monkeys, and lemurs. The whole staff ther made sure I enjoyed my visit, and took many pictures of me with the animals using my camera.
Be prepared with cash in Rands to give as tips to all the staff (tour guides and a group of animal handlers).
Also be aware that at the craft market they are extremely pushy and insist that you purchase things. They keep placing items into your hands trying to get you to buy them without even looking around. It was nice of MK to include the additional stop, but if I went again I would stay in the car.