Monorail to MK than take bus to AKL. Or taxi, but I think that's too expensive. Or rent a car in general. Renting always saves up time and $$. That way we aren't always chained to the WDW bus/monorail system. Whether it's taking our time to leave to the airport, needing to run to a store outside WDW, whatever, we don't have to depend on Disney's sometimes unreliable transportation system.
Or you could make it a late night at AK then take the bus back to AKL as well.