Eventually you (or your heirs) will have to dispose of this stuff. I suspect that there would be a much greater market for a leopard rug than another antelope shoulder mount.
Besides, as one poster noted, leopard hunting may eventually be closed, as lion and elephant (in most areas) now are.
But why not ask your PH about hunting both? Why would there be a conflict? I hunted cats and other game in Zim in 2011. The meat from the other game was used for lion and leopard baits.
