Can Someone Help Me Out With A Sick TV & Audio & Shelf Setup…. HELPPPP

[Prince.Skeletor]

See the above, I got a basement EXACTLY like this just empty.
I wanna put my OLED TV there and a audio setup but also some type of shelf system like the one in the image.

What do I do?
What do I get to set it up?
I want it to look sick!!