Grille fasteners, '72 Swinger?

Can someone point me to a picture or diagram of the grille area on a '72 Dart Swinger? I'm trying to put the front back together from boxes of parts...

There are five holes for 1/4-20 fasteners in the top of the grille, and corresponding places for clip nuts on the support. But the labeled baggie for that area has four body bolts and one stud with a large washer, which I assume goes in the center hole. Is that stud supposed to have a bumper screwed to its upper threads, or does it go somewhere else?

Also, the fender extensions each take two small screws that don't have any corresponding tabs or openings on the grille. What's up with that? There may be a trim piece missing...

Googling shows that my grille is definitely a '72... so some close-up pics of a restored '72 Swinger would help. I found a '71 Valiant body manual online but the grille section is very short and not helpful.
Thanks!