FYI, 72 was the 1st year of the larger egg crate grille, same as the Camaros ...
"Spotter's Guide
1972 Firebird
1972 was a very dark year for the Firebird. General Motors considered dropping the Firebird line all together. Sky high insurance rates for high performance cars and the government's crackdown on such vehicles gave GM even more reason to consider such an option. Because of GM's uncertainty on the Firebird, there were very few technical or visual changes.
On the Outside there were only a few changes.
Most noticeable was the new stretched honeycomb grill, which matched the Honeycomb wheels."
quoted from:
http://www.pontiacpower.net/spot72fb.html
Same for the Camaro:
"1972 Spotters Guide and New Features
Chevy continued to refine the Camaro but due to a 174 day strike beginning on April 7, no cars left Norwood Ohio, which was the only plant producing the F-body. When the strike ended, 1100 partially completed cars were scrapped or donated to vocational schools since it would be too expensive to modify them to conform to stricker '73 bumper & emission regulations. It is estimated that 39,000 camaros and firebirds weren't built, worth an estimated $125 Million to dealers ....
and the '72's got: Coarser grille mesh ..."
quoted from:
http://www.nastyz28.com/camaro/camaro72.php
the entire car is original (including the grilles), the bumper fits perfectly, just has weather issues
He IS looking for an original front lower valance though ...