The only part that resembles anything of an Australian military vehicle may possibly be the colour of the vent flap.
The rest is quite imaginative.
The ones we had on trials (which I am lead to believe were still under the books of Land Rover rather than the Army) were 2as rather than 2Bs and had the headlights higher and closer, Park lights and indicators were further apart, so much so that there was room for the Tac signs to be mounted between the parkers and indicators. There is always a chance that perhaps the RAAF bought one or two for some obscure reason (they did buy FC Jeeps, so one can only wonder) but the Army never had any in the GS fleet at least. If that were the case there would be a lot more tell tale signs and holes around the frontal area, rather than some white paint and some light buckets swiped from a 6005 or 6028 to show.
There is still a chance that the Government may have once owned it, as the PMG, as it was in those days, ended up with some bright red ones I believe, and DCA had some pretty yellow ones.
Regards
Glen