Hey Bud. I would say put in the cabinets like in Option 4 but put the rack in like Option 5. This way you have a clear path to your equipment for media exchange, etc. but can still access through the door when needed. Not only can you then use inexpensive rack rails and mount through an opening in the wall, but avoid buying a full metal rack. My heart would be with option 3 if you had the depth, but I just think the media rack placement in any of the first three options feels cramped and forced into the doorway, particularly since the rest of the room is essentially wide open.
If I were to make suggestion for the equipment room I would say make it as deep as you can since it would be otherwise unused space. With my equipment room in my last house I had almost the same set up and I had bought one of those mega media holders like THIS
, giving me the ability to put EVERYTHING I owned into this one convenient spot. Technically speaking, the media unit could even be located opposite the base cabinets for even easier access while allowing plenty of walkway room.
Maybe a nice cart-mounted popcorn machine
by the doorway (to the left of the cabinetry in Option 4) would be nice to complete the look of the concession area.
Very nice and neat framing by the way - top work.