Hi, Maryellen,
I’m so glad RESTART has made such a positive impression at your school! Thanks for letting me know about it.
I’ve been in touch with Scholastic, the publisher of the book. Their advice is that nobody is going to give your school a hard time about it. But they recommend that you run the plan by Recorded Books just to let them know what you plan to do with their audiobook. You can get in touch with them using the following:

RECORDED BOOKS at 877-732-2898 or customerservice@recorded books.com

I hope you’ll let me know how the project goes, Maryellen. It sounds exciting!
Best regards,
—-Gordon Korman—-