Here's a pic of the Aussie Desert Cooler aluminium radiator. I'm very happy with the quality of workmanship. the price was very reasonable too.
Norm set this one up double pass for me. That means there is a divider inside the right hand tank that forces the coolant to flow across the radiator up the left tank and then back across again. I wanted the iinlet and outlet both on the right side as it made my plumbing much tidier.
The thermo fan brackets are home made.
Cheers