BWAHAHAHAHAHAHAHAH
I only see a few zip ties, the fans look to be held on with wire so depending on where the fans were sourced it could have cost less than $5, i.e. free "recycled" fans.
Two thoughs come to mind, total CFM with all those fans and total covered (or open) area on the radiator. That may all me a restriction compared to a proper fan.
I like the "spirit" of the repair though.
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