Mezzo/Soprano Audition Help for Footloose.

Of the ones you suggested, I think your best shot would be Ireland.
However, I would suggest you look at some of Diana's pieces from Next to Normal particularly Maybe(Next To Normal) even though it is a duet. Diana's part before Natalie starts singing (from "Maybe I've lost it at last" to "But maybe one day she'll be free") is audition length.

My other suggestion might be a little offbeat but I think it shows the range required. When my school did Footloose, I wanted to try out for Vi but I didn't get in. The song I chose was "Secondhand White Baby Grand" from the TV show Smash so maybe you might want to look into that because the music's online.