Here's a few photos of the bungalows available in the various camps within Kruger. This one was for 1/2 people, and had shower/WC as well as kitchen either inside or on the patio. Importantly, they are air conditioned and have a fridge!
Other options, apart from camping/tents are huts which are similar to the above, but without the bathroom or kitchen. I think they may have a sink.