I think John Close and Ray Thurecht (PNG Printing) ferried the aircraft to PNG? Ray may also have had an interest in the aircraft? Ray had a Ted Smith 601P Aerostar at the time.
Jim Sinclair wrote a book called "Cape York to Coolangatta" (published 1981) which contained photos I think Jim took from John Close's Tiger Moth, although I may be mistaken?
The day Billy John retired he was pushed (by Sharpie, Lysencko and Alky) in a wheel chair from his last F28 flight, to the Tiger Moth where upon Billy gave a great demo of aerobatics over Jacksons.