Dave and Helena would be the owners of The Old Bridge Backpackers - certainly the ones that started it and don't think they sold it.
Dave is a Sandenberg (or how ever you spell it) same as his brother that owned Delta Air. They are 2 different folk but are family.
There are many good folk in Maun outside of aviation, get to know them too.
My first wife is from Maun, I believe her nephew is now a LAME and think both fixed wing and rotary. NF does not give that easy - also will go on record that the best ever LAME's I worked with were in Bots, would have most them work for/with any day in any place.