I would be talking to the PH or outfitter you will use.

If you are competent with field shooting with open sights on the size of game you are interested in to say 200 yards, I don't see a problem especially in bushveld.

If open country with lots of long shots, maybe a scope is a good idea.

Long range shooting = boring hunting to me anyway.

I've used a 4x scope on my first safari with a .30-06.

A 4x scope (I think it was put on at last moment to remove a malfunctioning Leupold variable) on .375 on the two safari trip next.

Then an open sighted .450 DR and a scoped 9.3mm DR on the next two safari hunt. The 9.3mm, I think the scope was a 1 1/2 to 6x. Will have to check the photos.

I find a 4x scope is easily big enough for most hunting. A 1x is better for close in running shots. A 6x or higher is good for long range shooting. I mostly use my 8x, 9x or 10x scope settings for small game or brain shooting medium game.

I used to be a better shot with open sights before scopes spoiled me. However was surprised at a BGRC shoot how well I shot with open sights. Did not expect it.