I suspect what was done for Ansett was they ginned up a flight engineers panel with some gauges and instruments on it to make the pilots union happy, but the rest of the flight deck was the 'two crew' configuration
I wouldn't call a panel with Hydraulics, Electrics, Fuel, Air Con, Pneumatics, etc, on it a 'ginned up flight engineers panel'. Maybe you would or is a case of you don't really know, therefore your use of the word 'suspect'!
See here for a photo -
BOEING 757 & 767: F/E Panel
They were full F/E panels. Not as 'full' as a 747 classic or a 727, but as full as you can get for the modern equipment of the day that was installed. And they were delivered that way from Boeing.
to make the pilots union happy
If I remember correctly, the F/E's were in the B767 due to an agreement with Sir Peter Abels that any aircraft with more than 150 passenger seats would have a F/E. While the AFAP were involved, the primary push was from the F/E's union.