Man! I put the HR Mounts in myself with motor still in the car on the ground on my back with a floor jack & ramps.
If there were instructions I think they would say "Stop scream, kick car, throw stuff etc" and I'm very patient. you need small hands if the motor is in the car. I would not want to do it again and I'm very mechanically inclined. If you have the money pay someone.
Also I put the mounts in with out taking anything apart.