As is obvious in the above picture, the steel back-panel behind the plastic grille was in some need of repair. Namely it was shallow rust pitting that had eaten the steel and generally dulled the paint.
as an interesting aside, you may note the round cutouts behind the square headlights, along with the round cutouts to the inside. the knockout for the rad is also strangely well thought out design-wise. There is a simple explanation for this though, and it has to do with Jeep's *cough*laziness*cough*. Jeep had it in their mind that instead of changing the body style like other competing automakers, they would simply stick a new grille overtop of the original 1963(ish) grille steel.
with that done, i grabbed a can of canadian tire near match black I wanted to use up (this was more to see what it would look like and get it all one colour, as opposed to a final painting). turned out pretty well I'd say.
Also, after doing this, I fixed my turn signals (which had some broken plastic clips, and were simply screwed in by wedging them with screws drilled through beside the lens (more old man fixes). i made some new sprung steel clips and mounted them to the lights, and probably fixed a few other things in the process.. i dont entirely recall.