Look at the Spree bookings for the rest of the year. Labor day is full, Coral Spawn is full (it spawns in Florida too, on the same nights), everything else is around half full.
I had, that's why I was worried a bit. You must have unfinished personal business in Houston to wind up because you surely aren't coming back for the money to be made.
As far as Florida goes, is there any legal or business reasons you couldn't run up along the Atlantic side of the Keys? Hit some popular wrecks and some mid level reefs.
P.S. CHUM would love to have the inaugural trip to Cuba when that day comes.