I haven't done anything with 80/20 yet myself. I recently heard someone discussing these guys. Not sure if pricing is competitive to what you get eslewhere but figured its at least another option for you to look into.
https://www.framingtech.com/solutions/aquarium-stands/
The guys at Framing Tech were ridiculously helpful. They helped me so much. They also provided some simple magnetic doors I'll use to hide gear.
p.s This pic is missing some endcaps and the magnet mounts. I'll source plywood + foam locally.