There are kits for these type of installations. Most likely, you may have to go with the Wayne Dalton iDrive that is a small high torque motor that fits on the spring assembly above the door, and use a low ceiling kit.
http://www.waynedaltonstore.com/wayne-dalton-garage-door-openers/idrive
http://www.waynedaltonstore.com/wayne-dalton-garage-door-openers/idrive