From the Osage Ambulance website:

Type III Remount E450 ambulance sold to North Palos Fire Protection District of Palos Hills, IL

Congratulations North Palos Fire Protection District on your recent Type 3 E450 ambulance remount!  This remount was sold by Mark Clemens of North Central Emergency Vehicles.

Type III ambulance remount

Osage Ambulance photo

Type III ambulance remount

Osage Ambulance photo

interior of new ambulance

Osage Ambulance photo

thanks Martin