The best Shop Manual is this site. We all learned while driving as this beast did not exist before in this form. Morgan was scant help and so the owners had to get 'creative' in solving problems. As for the EZ Lift, I've never had the pleasure. I used a hydraulic jack to lift the car and two jack stands to stabilize it for the rear wheel. I've swapped it out five or six times as well as resetting the belt. Mechanically, this is a straight forward task. Not many tools required except for patience. You are right in that dealing with the 'coupler' is more of a dealer thing. Try not to break it. If the car you get is of fairly recent vintage, then most of the designed-in weaknesses have been dealt with.