For the back of the vehicle you'll need some form of method of projecting the vehicle forward/reverse/sideways. I'd recommend some form of jet exhaust as the simplest method. However, that could lead to problems of property damage and fire. Better make it a cold exhaust, rather than a hot one, with air being forced out. That would also need some form of air inlet as well, on the sides. Add some form of infantry telephone box (although getting to it and using it might be interesting). Add some tools as well. Personally, I prefer them to be in boxes, rather than clamped in the open - it prevents theft and protects them from being snagged by bushes/trees.
