The arrival on Friday is late evening, so the next morning departure time from MCO to FLL on the Amtrak arrives after the ship leaves, so that's a no-go for us on this trip.
I did find a FLIXBUS option for $160 total for the four of us, but the pick up locations are further west than our planned overnight stay.
Looking at one-way car rentals seems to be the option after reading your comments, thanks!