I would ask Catalina Aquarium to make two 3 foot lights, each with 2 T5HO bulbs, in an extra wide housing so the bulbs are about 7-8 inches apart. I would hang those lights about a foot above the tank, to get good spread of the light over the whole tank. That should give you around 30-35 micromols of PAR, which is about as much light as you can use without CO2 unless you want to battle algae as a full time job. I would also use Excel with that much light.
Thank you so much Hoppy. I really appreciate your feedback and will contact Catalina ASAP