I think you'll have plenty of time for DQ on AK day. Just get to AK at park opening and have a plan of what you want to see. I would advise you to skip the train to Rafiki Planet Watch if you are pressed for time because it takes quite a bit of time and really isn't much to see. JMHO! We don't usually walk the trek or do the trail, but do the Safari, FOTLK, ITTBAB, Kali, Dinoland and Dinosaur and have lunch at Flame Tree Barbecue. We are usually done at AK by 2 pm and head over to MGM, so you should be fine for DQ!