That’s a dialed looked bike.
Regarding tire pressure, at 185lb/84kg I’m running 40psi in my 43c (which measure 45mm) Gravel Kings and find that is a perfect amount of pressure for gravel and hard pack.
I run 50-55 psi on my 32c (35mm measured) Specialized Roubaix Pros which I ride gravel on.
I’ve never ridden on Kansas gravel/rock, but where I’m from (MN) those pressures are perfect.