That's an amazing looking set up, parttimegamer!
This project has been on the back burner for a while but I played through the tutorial game of BA on friday night and so brought it back to the front of the queue.
I've drawn up a simple 500pt list for my Sikhs and I aim to get this painted up over the next few weeks. My troops will mainly be Warlord commonwealth with Gripping Beast Sikh heads, though I have ordered a couple of packs of Artizan Sikhs.
Jeep, Morris truck and howitzer are on their way from Paint and Glue Miniatures.
One thing I'm struggling with my research is how much variety there would be in terms of ethnicity mixed on the field. It seems the regiments were drawn from a particular area and so would have been pretty homogenous, I believe they deliberately tried to cultivate a regimental identity. The photos I have seen, while showing a broad range of head gear, are consistent with in each picture.
But by the time the 8th army had got to central Italy I wonder how much the uniformity remained? For purely visual sake it would be interesting to have a hindu driver, or soldiers in field caps. Any information on this would be grateflly received. As would any suggestions for reading material.