I figured I'd come back here and update now that my stand is 100% complete. I'm super happy with the final result, and wanted to tank hydrophyte again for sharing such a great idea.
I originally built mine for a 30" long tank, but ended up getting a 60p sized one, so I had to shorten the stand to 24" long. I also finally built the front cover and side covers using 1x2 cedar. All 3 covers (front, left, right) are attached with magnets (the standard cupboard door kind). They simply click into place and remove super easy. It gives me fast and easy full access to everything on the lower shelf (CO2, filter, heater, reactor, power).
For the light hanger I bent clear acrylic tubing and ran a small chain through it. I feel it visually disappears better than metal poles would. Here is the full final product:
Close up with the panels in place:
Front and side panels pop right off:
Close up of my acrylic light poles: