Act II, Scene 5
I think that this final scene is about Adam and Kris making a statement about who they are and about their relationship.
Master Plan
Live Like We're Dying
Sure Fire Winners
Man in the Mirror
I believe that "Master Plan" goes first in this scene because it has the longest introduction. Similarly, I think that MITM goes last because it is most climatic at the very end of the song. Like Adam with "Mad World," Kris has significantly changed his arrangement of MITM since he performed it on AI.
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My guess is that LLWD goes second and SFW goes third, but I'm kind of uncertain about this. I feel that, since MP ends kind of abruptly that LLWD goes next because it begins rather abruptly. I see a connection between LLWD and SFW in that they both have kind of half-rap quality about them.
Finale
Now if I were the one writing this opera, I would put some kind of powerful song with both Kris and Adam singing here at the end. So I've added "Don't Stop Believing." I don't know if they'd do the same.