Furniture/fittings rear of CMPs

[Colin R]

I'm trying to get info for fixtures & fittings in the back of CMPs, primarily C8s.
One of the main points of information I need would be the construction of wooden/metal units. I'm trying to kit out my vehicle as a wireless truck but would like to get the methods of construction for the units correct.
If anyone could help with the main unit (The actual unit the wireless would sit on), for example would it be a drop down door at the front or a draw, I honestly don't know just by looking at the picture.