Most reefers in your situation who are looking at adding Edge bars end up going with 2 Meridian 35 bundles with the Blue/UV Edge bars and are very happy with that setup. I’d use the Shallow Reef spectrum on the Meridians, which pairs really nicely with the Blue/UV bars and SPS.
That setup gives you the same total power as 3 Meridian 24 bundles, while also being more powerful than the Meridian 63 combo you were considering. You end up with 6 light sources, only 2 power cords for the entire setup, and IMO it looks cleaner. It’s the buy once, cry once option.
If you really like the look of a single fixture, you can connect the 2 Meridian 35 bundles together with the ICS rails and essentially turn them into one continuous light.
A Meridian 63 can work too. I would just make sure you don’t have cross bracing running through the middle of the tank, because that can block some of the light.
If you want, I’m also happy to jump on a call and go over the options with you. Sometimes that’s easier than trying to work everything out through forum posts.