[samurai007]

I think that will be a fairly hectic schedule, especially if your sister isn't feeling well. It takes a while to travel to each of those places (about 2 hours each way), remember. It's doable, but you won't have all that long at each place.

I took the JR trains when I visited Kyushu, but I don't know if the bus is any better or faster. I prefer trains, myself.

She might have some problem at immigration with the drugs. Make sure everything is in its original, well-labeled container, and maybe bring a doctor's letter.

Hope you all enjoy the trip! Be sure to eat Hakata ramen!