nitrox2595,
There were earlier sport version trucks that used body colored grill, bumper, and plastic bumper undershield (name) that were identical to the chrome and grey plastic parts yyou have. They had the black top cover just like yours. You could buy an unchromed plastic grill in ebay for not much, new plastic underpart, and either dechrome or possibly scuff up the chrome and paint the parts to match your truck. You'd then have a facsimile '97 -'98 sport model if you remove the bodyside molding entirely. One of mine is (was) a '98 sport model and there's a picture of it in the gallery. I can't give you any other picture of it because it's all torn apart in my shop now.