When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
They are very different. I can tell you now through experience that if you can even find one, a NOS replacement cover is going to be big $. They do make repros, but those are pretty expensive too. How badly broken is it? Many body shops can "weld" the plastic back together. If this is possible, it would probably be the cheapest alternative.