The ultimate for a backpacker. Remote, adventurous, and packs alot in a few weeks. This keeps you active too. Not sitting in a 4x4 gameviewer all day. This isn't in the guidebooks. Few tourists on this trail.
Start in Vic Falls.
Chizarira Trails with Leon Varley. At the end, drop off at Mlibizi.
Or skip this safari and Bus to Mlibizi from VF.
Lake Kariba Ferry to Kariba.
Steve Pope Chitake Springs lion Encounter/backpacking safari.
Tie in with a canoe trip (camping & bushwalking too in the best part of the lower Zambezi) down the Zambezi River to Kanyembe, Zimbabwe, on the border of Mozambique. In Kanyembe, there is a place to camp and some lodges/fishing chalets. If you want to fish, this is where some of the best fishing in Africa for Tiger Fish. They have teeth too.
'Cross border' by boat to Luangwa Boma, Zambia(at the confluence of the Luangwa and Zambezi Rivers).
Local transfer up the road to Bridge Camp is one alternative. There are some guest houses in Luangwa Boma and a campsite.
Bus to Chipata. Overnite A few good options like Mama Rula's, Dean's, ....
Van or other to Mfuwe - Wildlife camp or Croc Camp seem to be the favorites currently. Wildlife camp has a bush camp for bushwalking, but both are visited by wildlife.
Fly out or try to hitch a ride with an overland truck to Lusaka.
That gets you Vic Falls. Mana Pools canoeing, camping & some bushwalks through the best wildlife viewing sections along the Zambezi- look where all the upmarket camps and lodges are located on both sides of the river. Steve Popes lion encounter, camping and bushwalking- A side note.... it is now $200 per nite for an international group just to reserve one nite at the camp, plus park fees. This is the most expensive campsite in Zimbabwe. Best to do it with a local safari operator. Mana Pools is remote. The plan gets you to South Luangwa, for bushwalking, gamedrives, and camping with wildlife. Avoids all the expensive intercamp flights that plague most safaris.
If you got a group together, it would be easy to put this together with a few additional twists.