Underhood dimensions 71 Swinger

Can you explained what these measurement points are? Are they taken at the fender bolts or somewhere else?

It would also help if you would re-label the letters to be some thing like PA and PB so that they can be differentiated from side to side and better orient the measurements. There is also no front or rear orientation either, making it hard to understand which point is where.
I honestly didnt think anyone would care but I can explain, fender bolts B-G and assume pict is drawn ( like it was ) as if you are standing in the front of the car. A is upper rail to cowl seam, it is typically the standard of measurement since it is the most reliable that I could find on these A-bodies.

If that point has moved in other words than the car prob is not worth fixing.

I will post a picture of my A when I get back to the shop tomm.

Feel free to see my just newly started thread here The Garage Journal Board and see me hopefully transform this car into something.

I hope that is clear, if not than I will try to do a better job