India Four Two
Was your DF receiver crystal controlled or did you have to tune it?
Crystal controlled R1392 receivers
What is the gantry over the cab and bonnet?
The antenna could be swung down into the cage thus offering protection to the aerial elements when the vehicle was on the road.
The Gan RV-105 was also fitted with a TR 1143 4-channel VHF transmitter/receiver allowing the DF operator to communicate directly with the aircraft.
As to painting, not a profession but done under sufferance when my other half decrees something needs touching up, but the skills learnt in the RAF have never been forgotten.