There's an *** load of explorers at u pull it and a decent amount of rangers too at the moment, since you said you live right over there I would go check it out and you will most likely find the right pieces.
those covers are usually a pain in the butt to remove from the pod backing. lol....or maybe it was that i superglued them on because mine came off once after my LED mod.
Make sure you get lighted ones. I pulled a set from an explorer and they had bulbs in there, but when hooked up to the truck, they didn't work....so idk. i've been told some are lighted and some arent.
you can replace just hte covers....if the yard will let you. Ford only sells the complete pods. Most yards only sell the complete part. Depends on where you go. Ebay i've seen nice pods for like $20 shipped...complete.