Yes - more fragments come back to me. The BD aircraft would have been later, and painted in mid-1970s British Airways livery, the lorryloads of paint were red, white and blue, we reckoned they kept the white and the blue and palmed off the red.
Another story was that one of the aircraft, in BA colours, operated a BD service to Jersey. The BA ops crew looked out of the window and saw it arriving, scratched their heads about what service it might be, but thought nonetheless 'it's one of ours', and rushed out to it, falling over the BD squad who were doing the same thing.