Dick Harrell Front Bumper Project (tons of pics)
Just don't go running into things...lol...not that you will.

There was a thread on here that showed some guy theu retro'd a '73 Camaro grille into his 4th gen.
His car domain showed his steps and mentioned the products he used to make it fit.
I'd link you the thread, but the SEARCH isn't working right now...

You could always make the first one out of fiberglass or a combo of materials, then have it reproduced. that way you can get it in urethane or something.
The Best V8 Stories One Small Block at Time
right now i'm trying to focus on the lip that comes out

started with a big foam sheet, turned that into a big foam block, and came up with a rough shape:


a little more shaping:


and these are when i called it a night. still need to work on the curves a bit more, then hopefully i will get started with the fiberglass/resin/bondo work












