So the water test went well. No leaks and when full there wasn't so much as a 1/16" of flex on the front and back panels. At the last minute before filling, I put a 1/2" thick piece of foam underneath, just because it couldnt hurt and with the steel bracing there was an 1/8" gap under the PVC bottom. Figured it would correct any imperfections in the plywood top and the steel bracing.
Now I can switch gears and work on overflow, plumbing and sump system.
I'm picking up about 100lbs of dead rock today to work on scaping the overlow and tank. I have some ideas for the scaping so excited to see how it turns out. Need to make a bunch if hiding places, but still make the fish visible.
I also ordered almost 50' each of both blue and white LED strip lights for a DIY light project. Hope it turns out as well as the tank did.