Questions - Need some input

So I decided to reward myself for (finally) getting my BBA by building me a reef tank. I had a tank for several years but due to frequent moves I had to take it down. I had purchased a 75 gal tank a while back, but it has sat in a back room for to long! I have been reading and searching for the best way to set up my tank for a while now and thought I had it figured out. I started building my stand with a plan, but I recently found a deal on a Lifereef LF1-150 that I couldn’t say no to.
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