@scottwilson@infosec.exchange
OK you have power and ethernet there and you are probably American, given those plugs and switches. That means you will have a multitude of regulations to studiously avoid at federal, state, county and city level 8)
I would remove all those blanking plates etc and cut out all that drywalling (plasterboard in english). Have a multimeter handy and know how to use it. Prove that you can see 110V AC on something like a light switch wiring and prove it goes off when you kill the building power.
Find out your areas' regs. Does power drop down or go up or whatever. You have both lighting and power out there, which are normally here (UK) two separate rings, per floor. However you will probably have a three phase input and all sorts of imaginative stuff going on.
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Hire a sparky to do the job. You will want a comms cab at the top with network stuff in it, including power and a few power sockets below for general use.