I'm in the very early stages of planning a trip for September/October of this year, and I'm trying to nail down how many vacation days I need to ask other travel companions to save. Listed are full, 24-hour days.

Cape Town - 3-4 days (Table Mountain hike, day trip for shark diving)
Namibia - 7-8 days (either a guided tour or self-drive of Etosha NP and Namib-Naukluft NP)
Maun - 2-3 days (either day tours or an overnighter of Okavango Delta)
Victoria Falls - 1 day (as of right now, this is the optional part of the trip; only if timing and costs work out will we try to make it here)
Back to Cape Town or Johannesburg - 1 day, just to fly back home

I have a ton of vacation days, but my travel companions, not so much. Just trying to figure out the bare minimum required to see and do everything mentioned. Thanks.