By looking at the "dent/chingadera/booboo/ouchy, the "c" ring will not cover that up. If ya look at riveted bracket on the front side, you'll see a line about 1/4 inch or so in from the edge, thats as far as the "c" ring covers, basically just past the rivet heads. That "ouchy" will have to be pounded out, and the bottom lip straightened. Hopefully it will come out and be "true" if not, break out the tig and fill, file and repeat as necessary.
Also, just for informational purposes, the outer pieces are "pot" metal, not stainless, but they look in nice condition from the pic. Last thing, when converting to the ss grille style, all the inner headlight stuff is not used.
Again, this post is not meant to degrade or upset anyone, just putting the info out there.