The flat plates between the top/bottom pipes and the red side ones are just identical casts taken
from one mould the decorated with differing detail parts.
Use of this and other castings from previous models always come in useful.
if you look at the side door part in the middle of the main body, then at the surface facing to the rear,
at the top of the plate you will see a long, narrow rectangular vent like item.
Next time you are looking at the SHADO mobile on this site,
look at the second picture of the side view, top right corner.