Vintage Air or Similar Setup

I'm sure you could buy those electronic controllers separate from vintage Air and they do have perimeters which you'd probably may need the brain for as well but then those parameters controls run servos which you'd probably need those to operate something else to operate something else it sounds quite involved for not just hiding a simple switch...

So I have the direct fit Classic Auto Air direct fit kit. I want to swap my control to something like this. Universal Slim Line AC Controller | Classic Auto Air - Air Conditioning & Heating for 70’s & Older Cars & Trucks.

With this water valve Air Conditioning Electronic Water Valve | Classic Auto Air - Air Conditioning & Heating for 70’s & Older Cars & Trucks.

I'm sure the wiring is simple enough. I just not sure what to do about the servo to control the mode.