Towing help

#1
Looking to tow a small boat with a 2017 Toyota Corolla. It is an automatic, I believe the L or LE. The boat weighs about 800lbs, not sure about the trailer.

I read online that it's good to get a higher performance transmission fluid cooler, any suggestions on what to get?

The boat will need to be towed once about 3.5 hrs at 75-80mph, after that it will need to be towed max 1.5hrs at no more than 70-75mph but an average of 65 or so.

Thanks!
 
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