Thank you all for your kind words and support.
@Dylan, I do have a gaming system that I borrowed off the net for free and adapted for solo gaming. Moreover, I'm using David Bickley's rules for basing and gaming if necessary as a back-up for friendly games. iSandlwana and Inyezane are the only two battles I'm interested in. For the former, it will be from Col Durnford's area of operations and the latter the initial contact and subsequent battle. I will have only one unit of red coats for the former. These will be made up of the clerks, cooks, engineers and who ever else Captain Pullen, QM managed to round up in the closing moments. Difficult to know, but we can just represent them as a firing line. This will be about six bases of four redcoats per base. The Battle of Inyezane will have marching British redcoats poses with some modelling where required. I've started modelling some of the mounted volunteers for the latter. I'll add a stand of Durban Mounted Volunteers for their uniform even though they were not there for the initial battle, but later in the siege of Eshowe.
The basing system in some part represents no ratio of numbers. Vignettes are for portraying certain moments which may include some on singles bases placed amongst the tent lines, wagons etc.
Hope this helps.