I would strongly recommend Birmingham vs. Mobile.
The Lakeshore Foundation, located in the Birmingham suburb of Homewood is one of the nation's premier rehabilitaion facilities and is extraordinarily focused on individuals who are confined to wheelchairs.
Lakeshore Foundation
Birmingham is one of the nation's leading healthcare centers and has many more resources available for a person like your son.
I would call the Lakeshore foundation as soon as possible to get a complete understanding of the facilities and programs they have available.
Good luck and God Bless.