Ouch! I sure hope this is a walk in closet! Sometimes equipment space needs to become nonnegotiable.

Let them all talk about it, then come back and push for a rolling rack on the floor. easy for the cabinet maker to build around. We are to the point that we would almost refuse to put this much equipment on the top shelf. Installing and servicing equipment on a ladder is a bad idea.

I would point out the to the owner that for you to provide any future phone support, the customer will need to be up on a ladder to power cycle and provide status light information.