I would try to find a pair of the
OLD Current USA Ormit Marine Pro's that had 60º lenses and use two or three of them. They can plop right down on the rim of the tank, you just have to make sure the hood is ventilated correctly to remove heat as usual.
LED strips will cut WAY down on any "disco ball" you'll notice, but unfortunately hardly any makers use lenses this strong. The "N" series Kessil 360 is the only other one off the top of my head, and it's not a strip. (You can still make a "strip of spotlights" with them.)
Have you tried growing corals there already? Most people end up very surprised at how little light most corals really need. I've see a 48" deep tank run off a 4-bulb T5. Not ideal for everyone and all corals, but what is?