Duster grille resto.
I am currently working on my sharktooth grill.
You can get small blades at a decent hobby shop that fit into an Exacto knife holder.
Also you might have to cut away more than you need to depending on where you can fit a blade in.
I bought dark and light argent paint from Roseville Moparts, they are local to me. It was expensive...$23 a can.
Their website is
http://www.rosevillemoparts.com/
It came in a "Mopar" can, so you might be able to find it local to you.
Paul