Air Ride Install.. Questions about location of components

[biohazardbill]

This is going into 65 Burban. I know I will be mounting the tanks between the rear quarter and the frame however wondering where alot of you mount the rest of the gear. I would like to be able to access it for troubleshooting etc so I was thinking about putting everything inside however wouldnt that also put the pressure relief inside the cab as well making it noisy when lowering? With it laying frame if something went wrong, near impossible to get to.

Looking for ideas, suggestions.