What a beautiful set up Peter! I have been planning an upgrade to a 180 Reef, but the more I read about this section the more I want to keep my current reef, but plan for a 180 FOWLR instead. You might have already answered the Qs but I am wondering: 1) did you need to install extra support on your floor for the weight of this tank? 2) Even though you don't need intense lighting since there is no corals, what light do you find to have brought out the best of all the varieties of color spectrums in all your fish?
I actually had a structural engineer come out (father of a reef club buddy) to assess the tank's location. Based on his recommendations, the tank is against the outer wall corner, instead of centered against the wall. Also, the entire stand is bolted to the studs in the wall, essentially making the stand/wall one piece.
I use four 54W T5's to light the tank. With only two bulbs to mix across the length of the 8' tank, I haven't really found a favorite combo yet. The Fiji Purple bulb is definitely nice, and I have it mixed with a super blue (?) or something like that. It's a little dim, but the colors are pretty good.