Hello IvW,
How did your daughter's rifle on `Brno ZKK- 602 turn out?
Very interesting project and input. Your daughter is blessed for careful input, best thoughts for her education and work.
For Clarity, I have not yet hunted DG in Africa, just a student of the tools for many years.
Tried many different (many too many!) rifles, hunted some hogs here in South Louisiana.
Good specs all around.
I like the Ghost Ring style rear, with a Red Fiber Optic front sight for close range (70 meters) or less. Very fast. As another poster said, add a backup front fiber optic in the Grip Cap.
Most hunters/shooters can learn this sight system quickly.
New England Custom Gums (Recknagel) banded front sights are nice.
Maybe a Brno, barreled to .416 Remington, 22-inch barrel and ghost ring rear, fiber optic front, slimmed down to 9 pounds may be just the ticket.