Help with assembly manual

[Too Many Projects]

Thank you, Mike !!
NOW, anyone know what the number 15 line is that seems to be the plane I'm supposed to measure up from ? I thought it might be the body line at the bottom, but that is WAY too far down to only measure up the small dimensions on the page...
I have an idea what to do with this and it won't involve any measuring.
I have the original fenders, with all the holes and will find a way to locate them on a template to transfer to the new fenders. The left original has been smashed numerous times in the front and I don't feel confidant in using that one for locating the SS emblems on a template and the right one is 12' up a post in the back building and, of course, the post is surrounded by "stuff". I'll have to resort to doing something like all the crazy fails we watch on youtube...