A long way for 1 month Hi,
A friend and I rented a car in Harare and spent 5 weeks touring around Zimbabwe, Botswana and the north eastern part of South Africa. We didn't rush, but we also didn't spend longer than a couple of days in any one spot. And towards the end we were working harder to complete the circuit. To me, it sounds like you may be trying to go too far, but you may be able to do it if you treat it like a bit of a rally.
In terms of safety, my trip was in 1993 - before all the trouble in Zimbabwe. You may find it useful to check your national Foreign Affairs website for travel advisories in all those places that you mentioned.
Good luck and have fun.
Allison |