i've been through the pain of putting in a new grill... I'll spare you the pain of what I went through. the easiest way is like stone said. i ordered a grill from t-rex that would fit an 04-05 ranger. went to rockauto.com and ordered a grille from them. took out the center piece and riveted the billet piece in.
I can get better pictures if you want. Did this today actually. Took about 30min.
To make your current grille work, you'll have to cut out the center "H" in your grille to get it to work. I tried it once and it took about 2 hours to make it look decent. Even then, you could tell I'd cut it.