I do not believe there is anything written if that is what you are looking for.
Removing the grille is pretty straight forward; remove the headlight surrounds, remove the screws/bolts holding the grill
The grille does not come completely apart without removing some rivets which unless it is severely damaged I would not recommend.
Painting it depends on what you want it to be when done; RT's and TAs had matte black on them and I believe SE's had a silver argent paint on them. Look around the net and find some pictures of what you want the end result to be; then members can help you as needed.