This was a very challenging job. The first of the short list of issues with this garage is that the siding was very deteriorated and in need of repair.
From here it was ripping off the siding and some sheathing to move the wall back and then re-siding it.
In this photo you cannot see very much how I coped the siding along the rake to the angle of the roof but rather than cutting that roughly 60 degree angle and trying to get it perfect on a not perfect garage. I used a method of building called "shadow board." I ran a board along the rake above the siding and that way if the cut was short you would never see it. Also the appearance, this way it at least, looks flawless!