If anyone is curious about using a TV for your display and how you can manage distances etc...
This is what I currently have set up. (Excuse the dust)
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The drawer units are from Ikea and are also holding up a countertop from Ikea. The drawers are sitting on top of some carpet sliders that make it relatively easy to pull them out, and the top is not connected, so that can also pull back for an extra foot or so by balancing off the edge.
For the most part, I just use it as-is from a recliner for TV/PS4 usage and web browsing. I only pull it out and use the kb/m when playing a game that requires it.
The main drawback is that it's unsightly when it's all pulled out. If I cared about that more, I probably would just use a small easily portable desk to plop down in front of the TV as needed.