Car is looking great been a long road for sure but keep at it.
Just a note about how you are doing under the fenders and around the front end. Ford did not spray black on the outside of the inner fender wells. If you go to the Ford Facts Book you will see the notes on how the car was painted. Had two coats of primer, sanding and then the I believe two coats of color sprayed by normal means and then final coat sprayed with a special head.
The under side of fenders just got over spray, painted off the car, and the inner fenders got what ever the guy on on that side decided to put, lol. This car is an original paint car you can see none of the bolts are painted and suspension parts have no over spray on them like a repaint would have. Ford applied the seam sealer and what little undercoat they applied then primed and painted the car the color. The black below the Decor Group trim was then sprayed along with areas beside the tail light openings and under the hood and cowl area.
Your car will look better with the black under the fenders but would not be concourse correct if trying to gain points at a MCA show.
Here are a few pics of the car I have that has factory paint on most of the car. Hood and tops of front fenders were painted at some time maybe hail damage?
Way more paint on passenger side than the drivers side for sure. I scraped the loose seam sealer off and put POR on to prevent rust and put some seam sealer and undercoat back on. This is a driver and not trying to win shows.
The outer upper shock tower pieces I had removed to clean everything and they are SLOP gray like the shock tower braces.
You can see the bare steel where I had remove the cracked and loose seam sealer.