You're just not going to do it. Both TOT and Great Movie Ride get jammed in the morning almost immediately qualify as those rides people see early and say "let's do that." The best you could do is get an FP for either GMR, TOT, or RNRC and then try to beat the rush to the other side of the park.
At Epcot, Imagination and Soarin are on the other side of everything else you want to do, and Soarin is in the same situation as Star Tours even if it has a better GPH. MK will just simply have too many crowds and even on a dead day it would be one heck of a walkaround.
DAK isn't likely on any day because you're doing it EMH and there will be a bunch of people there with a limited number of rides, so EVERYONE will be in line for the same thing you want to do.
Well, group plans are now really up in the air, so I may not be doing this or anything by myself on this day at all. However, because of this, the group plans are now shifting to having a relaxation day on ANOTHER day of our trip, so I might try to do it then.
I wish you luck on your endeavor. I think that it is an accomplishment, to just visit all 4 theme parks in one day, without also trying to ride the premier rides. Whether or not, you complete your task, or not, you are sure to have a lot of fun trying.
Good luck! I have done the all parks in one day and it is not easy. Use fastpass. But you are there during Memeorial day- not gonna happen. It will be crowded. When I was bale to do it is was always during a very slow time (like maybe 10 people total in all the parks- exxagerating but very slow)
Got back this morning. No, it did not happen, then again, there really weren't any day long relaxation days as originally planned. I did however get a WHOLE lot done while I was there...trip report to follow in a few hours in another thread.