Cooling question - airflow - design

traditionally fans are not called right away. After the thermostat opens, and if the vehicle doesn't have air flow across the radiator to make the thermostat close again, then fans are called unless gain is made, like a green light.

But the way this was setup factory, the transmission cooler always got serious roaring air, regardless what the engine had going on.

So that tells me i really should make sure if the transmission oil gets hot, a temp switch flips on fans, regardless if the engine needs cooling or not. If the engine is also hot, then that temp switch will keep both fans on, eventually after both circuits are cooled down, then last temp switch triggered will stop the fans.

This i'm sure is why heavy equipment still uses belts. I know im asking alot out of this project, and i think if i approach it with generous room to breathe, i might win!