I like the idea of a transition from one area of the reef to another, like making one tank look like the reef crest with hard corals and so on, and the other look like a lagoon full of fish. Very cool concept.
I am all for LED, I run AI Vega Color units over my 60g Solana and the Chalices, LPS, and SPS love it. I like the sleek look and the energy consumption, the fact that they produce no heat, and the ability to finely tweak the spectrum.
There will inevitably be an argument over which LED to go with, but really, maxspect, radion, AI, you probably cant go wrong. Hell a bunch of kessils would do it too. I just like the AI units for cost and with the AI director coming, for adjustability and interface.
Your build looks like it will be killer, keep up the good work!