Confused what to do with a 5.9L serpentine setup

Click on my photo. This is my serpentine set up. Mostly factory from a 99 Dakota, less the power steering. Also, use an underdrive pully on the water pump. I run a 3.91 sure grip and at 75 MPH engine stays a 180.
Not trying to influence you, just showing an end result.
Good luck with it all.
I just looked it up and your engine is CLEAN, looks great! I'm glad others have made the truck serpentine set-ups look good. Most Magnum serpentine setups looks bulky and out of place on an A-body. I will hopefully make mine look as clean as yours and others.