I don't think I've seen a radiator fan that draws 85A on startup... that's ALOT. In fact, they're usually wired with 14G or 12G wiring, which doesn't like 85A.
I think you'd find that you actually could deal with somewhat decreased cooling capacity, but that's not an argument, if you don't want to decrease, you don't have to.
Check on fans that are used for reefer units, they'll surely have the capacity you need.
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