Okay, back in C4D since I still don't have the model the way  I want it. New updates:

Doors on all 4 sides of the upper stadium - you can now get in and out of the place. A 3-light fixture is above each, but I think it looks kinda dumb so I'm most likely gonna make new ones - should go fairly fast since I have a handful of designs I'm working on.

Doors below in the arena that I'm finally happy with as well as lights above them.

Reduced the number of wall beams seemed cluttered and unnecessary, and it lowered the poly count - of course I then upped it with the doors and lights, but hey, here we are...

Added some temp basic textures for the lights and monitors just to highlight where they were and how they would separate.

Work is picking up big-time so I'm bouncing back and forth between C4D and learning some Poser to make it all work.

-Lew