Madbrian's daughter should take private voice training. She is not stuck in her voice, especially at 14, and you'd be surprised at what just a bit of power in her mix will do. This is something a choirmaster doesn't have time to work on in a group setting.
By the way, all the roles suggested except for Vera and Dolly require strong belts. Nellie has to reach a C (nice mix, not belted) at the end of "Wonderful Guy" and in her "Some Enchanted Evening" reprise and Nell Carter has a pretty gosh darn strong soprano belt type of quality in her singing. Aurora mostly stays low, but she still needs a strong belt in stuff like the end of the title song.
"The hours between twilight and darkness belong to the makers of music and tellers of tales." - Pagan saying /
"We are the music makers, and we are the dreamers of dreams." - Willy Wonka /
"Theatre is life, film is art, TV is furniture." - Unknown from internet