Only way to really get the grill all black is to plasti dip or paint...because I don't think there is an aftermarket grille that is all black. The chrome strip on the trunk lid is easy. You just take the trunk liner out, look up inside the trunk lid where the chrome trim is, and there is 4-6 10mm nuts holding it on if I remember correctly on the size. Id also disconnect the license plate lights wiring harness. Its just simple to disconnect. Loosen the nuts and take them off. After the nuts are off, it pulls right out. As for the places to buy oem bowties, ebay has them for a lot cheaper than the dealer. gmpartsdirect.com and gmpartscheap.com has them very cheap as well. YOu will end up paying shipping on those as though if you buy them from a gm parts website.