Yes, I don't think you really need to bother with figures, but if you'd decide to try it, at least you'll have some directions.I don’t normally do figures with my AH models and, although I dabbled with dioramas many years ago, I gave them up as too time consuming, taking up too much space and a detraction from the fun of designing and building AH kits. In this case, however, the model being a post WW1 armoured car, is different enough to perhaps warrant a couple of figures for context.
I will see what I have in my spares box and adapt as necessary…
Also, I can send you a few suitable photos of older rural or town architecture from the region, if you'd need a background for a diorama.