We did a similar trip to this in May and June this year over 5 and a half weeks. That made for a fairly relaxed pace with a 4 day trip to Etosha from Windhoek and a 2 day safari in the Okavango - which probably just edged it as the best part of the trip - and several stops for 2-3 nights (Fish River, Poppa Falls, Vic Falls, Jeffreys Bay, Cape Aghulas). Our mileage was just under 5,000 miles (8,000km). 3 weeks would be very rushed.
Zam border wanted US$ for visa fee and various other charges. I think all in it about $US100 to get in. We didn't go to Zim but heard border fee were even higher. It might be cheaper for South Africans though.
Roads....we mostly stuck to tar roads as my wife discovered she really hated riding on gravel roads, but the Nam gravel roads we did do were pretty good on the whole without too much washboard or sand washes. But you need to keep your wits about you as both can be anywhere. We ran at about 60-80kph on gravel; 100kph on tar.
some pics and stuff at this link
have a great trip
|