Ahhh, just to complete Feather's story... A QF FE looked at the plane (which wasn't worth much anyway) and realised that he could make some money selling the flight director system, avionics etc as they were the same as the 707s.
After he bought the plane however, QF pulled everything out. The FE protested but was told tough luck. When he retired he took legal action and won. I understand the company had to pay compensation of some kind.