1966 Land Rover Series 2A ex British Military Ambulance wiring diagram

[Pinzgauer]

Does anybody know where I can obtain a wiring diagram for a 1966 Series 2A ex british army ambulance with the Marshall body?
Thanks
Dave

[busboy]

Back in the early 70's I worked at Marshall's Aviation division in Cambridge, right across the road from where these ambulances were assembled, I remember seeing 100's of completed ones lined up ready to ship. Anyway the people at Marshall are/were very friendly and perhaps a short email to them is all that's needed.