I am searching for a 2000 Bravada grey/pewter back bumper cover?

I have been searching like crazy for one. I need to buy the rear middle and rear passenger bumper covers for a 2000 Oldsmobile Bravada in Grey/Pewter. I have searched all around for one but I cannot find a set under $250. I can't find one in a local junk/scrap,salvage yard and I can't find one on eBay. I don't mind having non-traditional replacement (compatible), but I have no Idea what to look up for it. I know that there is supposed to be some sort of Blazer or other SUV that has a compatible bumper. I just want it to be the same color. Any ideas? (Michigan - The Thumb)