Hi, I don't know if this will help or not. I saw that no ones been able to help you yet.
The only info I can give you is kind of second hand. 2 years ago we stayed at POR. We were given the option of going to Animal Kingdom in the morning if you wanted to do a character breakfast. We didn't go.
We were picked up at POR at 12:15pm. Now, here's the connection (LOL). They did not fill up the first bus and then went to AK to pick up people.
I know you said AKL, and I don't know if that is a resort that is a part of the land/sea package. The buses do not start very early picking up. Personally, and from other posts as well, I would take a car service. You get there earlier than the buses and there is no line at the resort.
You said that you are on a 7-night. I'm not sure how they run everything for these. When we did the land/sea, it was convenient to take the
dcl buses because we didn't have to check in at the terminal. We just walked right on the ship. But as I mentioned, the buses will get there later.
Have fun and I hoped this helped a little. Or maybe someone else will have more for you.