Beverley
Sorry to be so (too) late discovering this interesting thread. I was the co-pilot on the delivery flight of the RAE Beverley to Luton. After I had left Farnborough, my Boss and captain on the delivery, Pete Sedgwick (a proper test pilot) handled the final flight to Hull where it was destined to be the clubhouse for the aero club there. One earlier correspondent thought that while with Courtline it may have made one or more training flight, but I doubt it as getting pilots qualified before registration seems doubtful to me.
My memory is probably wrong, but I believe one good thing that came out of the collapse (at least for future package holiday pax) was either the invention or the strengthening of the ATOL passenger protection scheme.