The first mock up. Two internal screens are in place with the relay boards roughly positioned. The nut in the top right corner is the long wire antenna input. The earth strap is below on the bottom side. This compartment is where the balun will be placed. There will be terminals mounted on the right vertical side of the box for a balanced antenna input. The small relay board will switch the inputs. The multipin connector is there to support the screen, it will be fitted back into the large hole of the bottom panel if I can find a suitable plug.
The aluminium box in the bottom left corner is the DC injector. The Arduino and other logic boards will be mounted on the bottom plate above the box. Voltage regulators will be mounted on the screen. Holes on the bottom are for the multipin connector and PL259 socket