@MMAL , I did a photo safari in Chobe in 2015. This is a link to my report:
https://www.africahunting.com/threads/botswana-chobe-photo-safari-august-2015.23742/
We stayed at the Chobe Game Lodge, which is the only lodge located inside the park. So if firearms are prohibited in the park, perhaps you can stay at a lodge outside the park. The only drawback to this is tour vehicles can't get into the park and must leave the park by certain times. You miss out on a little........but not much.
We always used a Cape Town based travel agent, Go2Africa.com, for organizing all our adventures during the six years we lived in Lagos. I will PM some contact info and if you want to, contact them and see what they can organize for you (ground transportation, permits, etc). Tell them what you want to do and see if they can make it happen.
When we left Chobe, we headed to Livingstone, Zambia. Go2Africa had a local tour company, "Wild Horizons," transport our group by tour truck to the banks of the Zambezi River. The queue of 18 wheeler trucks and cars was a couple miles long to get on the ferry. Instead, we bypassed the line and very long wait and transferred to a boat that zipped us across the river where another truck was waiting for us. The driver of the truck collected all our passports and went into the Immigration office and handled everything. We never got out of the truck and before long, cruised down the Zam highway to the Royal Livingstone Hotel and Victoria Falls.
BTW, the Kasane airport was building a new terminal in 2015 and it should be up and running.