Fortunately I haven't had any trouble with my '05 and the rims peeling. (touch wood)
However, I think I picked up a stone in my boot a while back and took a chunk out the chrome on the floorboard. Over the past couple of years it's been getting worse.
Good news is and this may be the case with you as well... There is not a lot of call for those floorboard covers nowadays and as luck would have it I wasn't looking, but found a set that originally was priced at $292.00 cnd marked down on sale to blow them out at $59.00. Great deal, eh! Well after a little further negotiating I walked out after paying $35.00.
Keep your hears and eyes open and you just might find a dealer trying to get rid of a set of rims and floorboards at a "steal of a deal".
I wish you the best of luck with your search as I highly doubt the MoCo will do anyting after such a long time.