Why not just borrow one from the PH? The problem with two firearms is carrying them. You have the rifle for the big game but want the shotgun for the honey badger. How do you pack around the shotgun for these occurances?
My hunters last year shot Steenbok, Baboon, Civit cat, Jackal, fox, caracal cats etc etc. and none were damaged beyond repair with a 270 grain bullet from a 375HH That's the beauty of the 375HH over a smaller bore magnum. They actually work far better on both the really small stuff and the really big stuff along with everything in between!