Savoia,
Of course! My father is John Austen and was based at Cranfield during the late 70's with the jetranger.
The majority of the time was with BCal and when they got the contract for the Met Police he moved to Lippits Hill until the late 90's when he retired.
I am sure he would be more than keen to assist you and i know there are a number of photos knocking around from then.
Rgds