What style light do you have? For most of the hard parts,sheet metal, headlight buckets and such. I've noticed that you need to look in other places such as,the truck parts for sale,or post in truck parts wanted,local salvage yards,Ebay?
I was thinking of switching to the longer teardrop style that you probably have and found a set that were incomplete on Ebay.
I've watched these on eBay for a long time. Sometimes a deal comes up, but often they're way overpriced and rusted beyond belief.