Thank you. All very useful info.
We will be returning 2 rental cars and have perhaps 10 bags to check in. So I am planning to drop everyone and all the bags off before the 2 drivers make their way to the car rental center. Is there still a direct bus shuttle to International departure? Someone has mentioned needing to take a train ride to domestic terminal followed by another bus to the international departure.

Any recommendations to make things less painful ? Thanks