Hello all,
Have found the installation drawing for No 11 set into Aust Carrier.
As Jordan incicated there was a frame fitted to the right (toward the rear of the carrier) of the No 11 set into which two battery boxes fitted and were held down with captive brackets.
The set mounts with the power supply above, just under the armoured cover.
The diagramme also shows the antenna mount on the rear of the engine intake scoop and all the other little weld on bits for the installation kit. as well as part numbers.
If you are patientI can send you a photocopy after Easter. I have no idea where the info came from. It is a copy of one undated page with no other reference and my memory isn't what it used to be.
Cheers
Phill