You seem to have the same plan as I had...and then I wanted to make it to the 9:50 show of Lion King(hoped to get there a little early).
Our breakfast took much longer than expected. We got to AK early but were made to wait for quite some time. By 8:10(when I had hoped to be seated), we were just being allowed to check in after passing through the gates. Then we had to wait for our commando waiter( think General Knowledge from Cranium Command) to gather up his crew, lead us throught he park, while shouting orders at us. When we finally made it to the restaurant and our table, we were told(yelled at) we could either go the the buffet and we would be told when the characters came out, or wait for the characters. Since there was no buffet line, and we were already running late we figured we would get food first, then see the characters while we ate. Well, we got up there, some of us had a few things on our plate and we were again yelled at " "Smith" party, get back to your table!!! Donald is at your table!!!!", etc... We immediately tried getting back and couldnt because more people & characters were now in our way. Our waiter could see we were trying and he continually yelled for us. So, we got back to our table and had to sit and wait for all the characters. I would estimate we didnt start eating until after 8:30. We ended up rushing through the meal, totally stressed and we finished just a little after 9:00. Of course, in order to keep on track of our plan, we had to run across the park to safari, but we still didnt beat the people just coming in.
I dont know if this is usual occurence at Donalds, or if they were just under pressure because they were running late this day or what. But it was not a very enjoyable experience for us. Too much pressure. We decided we will stick to Chef Mickeys where you dont need an appointment to see the characters.
Hope you have a better experience!