Could you no have some smaller lights going width ways across your tank?
Grab 2 finnex 24/7 planted+ in the 30inch size and place em spread on the width of your tank. Kinda pricey but amazing lights imo. Can change the color to whatever you feel like or leave them on their automatic cycle.
I run the finnex planted plus on a planted 125. Yeah their some bright lights.
No I think you would need two 48" fixtures.
The 48 would leave a lot of the tank dark. If you want it more of as a spot in the tank being bright with all the sides being dark then go for it. If you want a fully illuminated tank they get the 2 30's. With the central American cichlids, I like to have as much light as possibleok ill get the two 30" fixtures then and put them side by side