Not to complicate things but
March 5: fly down & check-in (CBR)
March 8: Check-out (CBR) and get a rental
March 8-10: With my Dad's (85th B-day) in Ocala
March 10: Drive back to WDW, return rental, check-in ASMo
March 13: Check-out (ASMo) and fly home
Advice on Cheap Transporation Please