Sorry this has taken years to emerge! One of the messages we got after Dad died last year was from Geoff Kendall. It's on the Airman Aircrew site so I'm guessing it's OK to reproduce.. Geoff wrote "I think the last time I saw Dave, he was the OC Darwin, literally the day after Tracy hit the place, when I bowled in unannounced in a Bristol Freighter with a load of corrugated roofing, rolls of hessian and tar paper et al. He greeted me with his usual courtesy ("Kendall, what the hell are YOU doing here?") but he could have kissed me when he learned what I had brought in. As I say, lots of memories and all good ones."
That may answer your query about whether there was a Bristol Freighter there. There was!