As for your Zulu War display notion, I might suggest creating more of a
Isandlwana vignette. This would not require any walls or buildings, though you could incorporate a wagon or some tents in among your 24th Foot troops and then surround them with a heaving mass of Zulus. I would not concern yourself with mixing Sudan related figures in to this scene for a number of reasons. It would be glaringly inaccurate, and perhaps more importantly
these figures do not yet exist (except in our imaginations ). There are certain to be a steady stream of new AZW figures coming in the forseeable future so you should be able to focus on that for now. My opinions only of course.........
MD