unlike older units like mine (which also is currently non-working), my understanding is the electric motor and the hydraulics are separate in your unit. If your motor is burnt up, you could probably rewire it yourself, if you feel so inclined. From looking at the diagrams, it looks like a typical DC brushed motor.
Here is a new, replacement motor:
http://www.iboats.com/Mallory-Power-Tilt-and-Trim-Motor-9-18302/dm/view_id.363738
It says it is an OEM replacement for yours.
So are you attempting to repair the motor or the tilt / trim unit?