Building the stand really seems like the way to go. I have been thinking about it for the last day on how I would want to construct it since it would be going in a prominent area in the house so it would need to look good. Thinking about just doing normal framing and then having some sort of removable wainscoting fascia that wraps the exterior of the framing to make it presentable? Thoughts?
you truly won't regret it, especially when you have company over and everyone is like "wow, that stand is beautiful!" and you can say "yup, crafted her myself

but I like where your head is at, I think a finish like that would look absolutely amazing. Especially if you could somehow have your choice of finish or wrapping match what's going on in the tank (in some, slight but noticeable way...)