Do you have to move with him right now? You could let him settle in a bit. You could go ahead and talk to the new school to see about their requirements. Just remember that moving to a new place does not change things. You can move away, but you still have to deal with yourself. That's what a good friend told me last time I moved, and it was so true.
You call the new town a "beautiful recovery town," which makes me think you are looking through rose-colored glasses. Every town has sober people, people on drugs, good people, bad people, etc.