[Prof.]

Hi Kyle and welcome to THe Shack..

Your room size is exactly the same as mine..
A room that size can very quickly look cluttered with the additions of equipment, speakers and furniture..
Having an in-wall equipment rack is a very good idea..Unfortunately I wasn't able to do that in my theatre, so I made a false screenwall, which hides the AV gear and the speakers and gives a very clean unclutted look..

With an in-wall rack it's just a matter of running your cables from the back of the AV gear, up to and through the ceiling, across the ceiling and either terminating them with connector plates, or just running the wires through a port opening in the ceiling near the projector..

Your speaker wiring front and back can be run in the same manner, connected to terminal plates immediately behind the speaker locations..

As far as running any ancillary equipment in the room, I don't see any problem with adding wall plates for computer, phones or anything else..

Keep us up to date with your progress..