Update time!
With our successful move the Pacific Northwest complete I can refocus on this project! This move allowed time to process many of my lingering thoughts concerning this setup. Anywho, on to the upcoming work needed to get back to pre-move setup.
Stand - I've made the decision to order a taller stand (40") through Misumi with blind joints for two reasons: first this would bring the short tank higher in efforts to be more pleasing to the eye, second it allows ~8 more inches of space in the stand. This second point takes us to the sump...
Sump - our movers shattered the 20G sump (not surprising). Baffle kit will be moved over to a new 20G aqueon sump which I picked up over the weekend. Plumbing will look very similar to before, though the overuse of unions will be resolved this time around. As for the extra space, I'm designing a pull-out shelf below the sump to hold a custom acrylic reservoir (saltwater/waste water/ro water), the ~8" of space should equate to a ~12 gallons of volume (4g salt, 4g waste, 4g ro top off).
Controller - still working to develop a full stack website which runs on the raspberry pi. I might adapt the existing work done through Node-Red to get the tank running while developing the full-stack site. Not sure yet, but I'm ready to get water in the tank!
Paneling - My wife thought it might be fun to create a waterfall-style paneling so likely black walnut plank for the narrow sides and top, with a white front panel. Several places in the Portland area have solid wood planking available for this type of thing. And for hardware,
@Mirkus found a nifty solution using Button-Fix components:
https://button-fix.com/
More to come, all components should arrive within the next two weeks.