It would depend on what you want to keep in the future, but I would consider a different light than the AI Vega Color. I used to run 2 of them over my 47G tank. They worked well on there and could grow even sps on the sandbed, but then you'll have to crank them up and there were hotspots. It'll be hard to find replacement parts for them down the line (e.g. fans) unless you want to buy someone's older fixture (probably the best bang for the buck investment if you want to stick with the Vegas). Good lights, but old technology.
If you plan on keeping mainly softies, lps, and the hardier sps mounted higher up on the rockwork, they'll still work. Just plan on upgrading down the line.