I did this last year... its imperitive you follow the bolt sequence. the bolts are #d on the case.... dont pry. its all aluminum. the shop manual is what I used when I did mine. between the forum, sean morley, and the service manual its not hard. if you have mechanical experience its a 7 out of 10 on the difficulty scale. bag your bolts, parts and pieces. place them in order and go get yourself a 1/4" torque wrench. theres alot of 7 and 14 ft lb bolts.
take the swing arm off to install the motor. itll save time and keep your blood pressure low....
good luck,
evan...