It always depends on those bus schedules unless you will have your car. You might get to the bus stop and it comes in 5 minutes, or it could be 25 minutes. If you feel that you are going to miss ROL, you could always grab a taxi. I have stayed at AKL on my last three trips to WDW and getting places quickly is not one of the perks, although, of course, AK is the closest. Hope you have a great trip!