Anyone know where i can get 1972 GTO steel hoods?

72, tall order! They repro the '65-'67 and the '68-'70, but I know of no source for a new one. You can try Jules at Arizona Desert Specialties. He's in Tucson and has a wrecking yard dedicated to muscle cars. He has Pontiacs, personally. Good stuff, fair prices. (520) 574-9611
Another is Boneyard Stan in Phoenix. I don't have his contact info, but I'm sure he's in the book. Bethel's Goat Farm in/near San Jose is another.

Put up a picture of one, maybe I can help you with that. A friend of mine has all sorts of body parts for older GM vehicles sitting, stacked, hanging in a barn. Show me a pic, and I'll see if he has one.