The plastic/chrome grilles on ebay that go for about $40-50 are good enough for the price. You could pay more for a set that come close to the original, for about $75, but you can't tell the difference from the outside once installed. The only difference is the inside of the grille behind the hood, the more expensive grilles are made of 2 separate pieces clipped together;
where as the cheaper ones are molded in one piece.
I had the imitation one from ebay for $45 and am happy with it. Been over a year and the chrome has not peeled or chipped.