Ker & Downey will have a packing list with your tickets.
My advice as little as possible lots of moving around. Safari clothes are perfect it will be pretty hot. Two pair of safari pants and some tee shirt tops. These you can rinse out yourself and they dry overnight. One or two light pairs of pants and a few tops for the evenings. Things that are light to pack and do not wrinkle. Wear athletic shoes and a pair of sandals for night. Cutting down shoes really helps with packing.
For men be sure their slacks are washable not dry cleanable so you can get them washed in a hotel if necessary.
Most important of all have bags that are NOT full so when you move around you do not have to pack so carefully.
I will probably pack as I do for a safari. Have things packed in zip lock bags so I can rummage through my clothing without having to keep folding it again. Makes is so much easier.
Above all remember we are all in the same situation. You will see me in things numerous times and when all is said and done no one will remember what the other person was wearing.