dovf,
I am based in Sydney and you can take a look at my Longchamp as it has a modified cooling system that works very well. It does rely on twin electric fans and a modified radiator. As my car was set up to racing(Targa Tasmania, Indycar Rally etc) the cooling system needs to work under extremes. It may give you some ideas to apply to your needs.
Stuart
Longchamp GTS 3215
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