Personally I would hunt the Save Conservancy in Zimbabwe with Thierry Labat.

And I have, several times.

He success rate on big leopards is unparalleled and there is unbelievable hunting for all the other species you mentioned.

I've shot some huge eland in the Save (3 over 38") and my daughter shot a 60" kudu.

The plainsgame, leopard and buffalo hunting there is unrivaled in my opinion.

PM me if you'd like to hear more.