First, welcome to Nitro Express. I hope you can find the information you need and enjoy yourself.

You can find the 375 Flanged in a Searcy, I believe, as a new rifle. You may also be able to find a used one but they can be pricey.

The 9.3x74R is a very good all around rifle if Africa is only an occasional trip. The 9.3 will handle Buffalo and anything else other than Elephant, Hippo and Rhino with well placed shots. Just like the .375. It is a great Moose/?
Elk cartridge in the US and should be in Norway as well.

Mine weighs in at 8 lbs or so with a Zeiss 1.75 x 6 Scope and is quite a nice little rifle. I do most of my hunting with it and a 400 3.25 Double.

The 40 caliber Doubles are about 2 lbs more in weight but would be better African Rifles as they carry a bit more punch. You can load them down sometimes to shoot a lighter bullet that would be good for Moose and such but you do not need to.

You can find numerous new and used 9.3 around but most of the 400's will be used.