Here is where I am at. Live in an apartment so space is tight and needed everything to be able to move into the closet. I’ve got SNES, N64, Wii mini, Sega Genesis, PS2, a vcr, receiver and stereo speakers, Extron switcher, and playing them all on a Sony PVM14L5. The rack is from Amazon and most are hooked up via RGB.
Cool setup, but just want to call out I'd be careful about ventilation.
Like the speaker on the AVR is probably making it get a bit hotter.
The SNES on top of the VCR may be blocking a bunch of vents.
Not sure the CRT has intake vents on the side but the PS2 flush up against it might not be great.
Just something to watch out for, don't want all that retro equipment dying prematurely!