The only way to do all three is get a Fast Pass for Mission Space and then get into line for test track right after the rope drop. As soon as you finish your fast pass for Mission Space which should be right about the time you finish getting out of test track then go for a fast pass for Soarin. You may not get to do Soarin in the first hour but you will definitely be finished with the big three very early. Does Soarin have a fast pass option?
Every night EMH we went to at any park last May (during regular season) we walked on everything. We never had to wait for ANY ride and we rode some of the rides (like Splash) 3 or 4 times back to back. It was great! I love night EMH. Especially when the parks are open until midnight because a lot of people get up early and go to the parks where as we sleep in and hit all of the parks in the afternoon/evening and by the time 10 p.m. rolls around a lot of people have left.