The small swivel stool was standard issue for the FFRs. But I expect as time progressed a lot were misplaced or broken and not replaced.... or there's a wharehouse full of them somewhere

You could have a brew in the back and snacks. Having a meal outside of the FFR was a good way to have a break from the radios.
No smoking in the vehicles at all. No smoking in the canvas tents either. Some ignored this from time to time

Also no sleeping under the cam nets.... I've seen the poles snap when it's windy and spear into the ground...
We had clocks as well. They were white, rectangle in shape and about 20L x 15H x 10D (cm). They had the flip type numbers and ran off D cell batteries I think. We usually had two - one on local time and the other on Zulu (GMT). They were usually zip tied to a horizontal canopy frame, behind a radio.
In the early years we used the old 500W generator to keep the batteries charged up. Later on (mid to late 90s) we used either a 1.3 or 2.5 Kva generator, depending on if it was a light or medium radio detachment. I believe the 1.3 was phased out later on, but I don't know when.
Cheers.