You can always put a Ghost on the boat in 36v, if one craps out then disconnect it and run in 24v.
I went with RELiONS in mine, 2 50aH and a 100aH for cranking, been running them for almost 5 years now with never an issue. Big motor cranks super quickly compared to the old lead acid I was using prior. You will love them, my boat (not a Falcon... yet) leaps out of the water. I think my next upgrade is putting the PP Charge in the boat to lose the heavy Dual Pro charger. When I upgrade probably next year the batteries are coming with me for sure to the next one.