Good electric fan in a Darwin summer and your car will love you.
You'll just be able to sit in heavy traffic for hours! How's the morning traffic on the freeways in Darwin?
You'll be surprised at how much noise the engine fan made after you remove it.
Depending on your budget, a set of twin AU Falcon fans including shroud is the best design. Just requires a slight bit of trimming to custom fit to other Falcons.
Here's the cheapest website in Oz for them. $200 + $30p/h. Part #: FEU6010NAU-676 They call them a "radiator fan assembly".