The cooling system on these is designed for severe duty on the most extreme places on earth. Florida isn’t one of them.
Something is not working correctly.
If your fan clutch is working correctly there should be no need to downgrade to an electric fan.
I say downgrade because there isn't a single electric fan that will fit into our vehicles that can match the air movement of our mechanical unit...
This, as I recall, is how it went down for me. Use local Lexus dealer glass shop and have Lexus reach out to insurance company indicating that OEM glass is the best option for replacement.