Help with ATI/Kessil setup

[coralor]

I'm hoping someone out there has some advice for me please as I'm considering getting a new custom peninsula tank build that I'd like to use my existing Kessil 160's on as well as integrate a new ATI system with it.
The tank's dimensions will be 54" L x 34" W and 22" H. That's not set in stone yet, (or glass, lol but just what I'm considering at the moment.
I'd like to use an ATI Sunpower in conjunction with the Kessils so am thinking either one 48" x 8 bulb ATI down the middle (which is flanked by 4 Kessils) or two 48" x 4 bulb ATI's with the 4 Kessils in the middle.
The tank will have a mix of corals in it but will be predominantly SPS.
Open to suggestions and/or other ideas if anyone has any?