Logistics support for my NATO

A good friend of mine gave me about 20 of these. I plan on painting them up for my Cold War armies which used them.
For my games, I will paint them for my armies of:
Canada:

Outside a cabin in Northern Norway perhaps? For my Canadian forces, I shall be painting up at least three as support to my RCHA and RCA batteries plus 33rd Service Battalion which is what LFAA now 5th Canadian Division. 

Denmark:
Italy:
Spain:
British Army: Specifically I will attach one to the heavy gun battery I have with the 175mm gun