I must say it is very difficult to convey the scale of a tank this size in a photograph on a forum. For reference, it's currently holding about as much water as my last system (the 125g) did when it was full.
And of course the rockwork is impossible to photograph well - I shot about a dozen photos but none of them showed it off well.
In between working my job plus about 30 hours a week on the house, I've managed to do the following since I last posted:
-Finished plumbing, correct leaks. Lemme just say that everybody should triple check all their plumbing. I had four leaks - three of them were due to bulkheads or unions not being tight (d'oh!) The fourth was a legitimate leak on a glued joint that I had to repair. To do that, I had to drain about 4 inches of water our of the tank yesterday after I'd already started filling. I used a 1/2" hose to siphon the water out - 4" took nearly half an hour! I think I described the plumbing already, but I left three 1" valves with unions on the return line to make use of extra flow.
-Finished electrical. I went with three 15a circuits: One in the basement, one in the outside end of the stand, and one in the overflow end of the stand. All three got GFCI and conventional outlets. The basement circuit also got a GFCI outlet on a switch for the mixing pump in the water mixing station, so I can just flick it on and off instead of having to plug/unplug it.
-Finished drywall. I ALMOST posted shots of the drywall before it was finished but I'm both OCD about drywall finishing and bad at it, so I'm never happy enough to share photos at that stage.
-Built a little protected shelf up above the tank in the "nook" at the overflow end. You can see this in the photo above. This shelf will be for electronics that I want close to the top of the tank but not exposed to the humid environment up there (LED drivers, etc.) I will put a fan and a vent on the shelf such that it's always seeing fresh air from outside the stand and supplying it's exhaust into the space above the tank. There will be more vents at the opposite end of the tank to let the hot moist air back into the room. Plus, the doors (not built yet) will essentially be "breathable" so that will aid in ventilation.
I still have a lot of work to finish it, but it should be livestock-ready within the next week. It will be going up with temporary lighting until the work on the house is done, at which point I'll have the time to finish the LED build and install it. But the temporary lighting will be plenty to get the liverock seeded and keep the tank going for a month or two.
And yes it's just primed right now, the finish paint is waiting until we can repaint the livingroom at the same time so it'll all match. And instead of trying to blend into the existing sand texture on the ceiling, I'm just going to put crown molding up, hence the unfinished joint up there.