Lol I wish I had 4,000 watts when I first started.I think they look fine. Maybe fix you pH but for the most part you're good to go. I mean damn, you got 4K W of light running, way to jump right into it with a pro level set up then come here and ask a such a typical, simple question. Not hating on you grower, I wish you the best of luck, but some times it kills me the questions that asked and the situations. But then again, Im assuming, and Im sure everyone knows how that works out!
You have space, you just decide to use it for other things. Like sleeping, or watching tv.Hell, I wish I had the space and cash to run 4K now!!