I havnt seen anything while surfing but there are companies that make these to order that may be your only option unless you can find something from another car thats similar then I think it could be touch and go whether it would work suppose its worth a chance if you want it enough Mmmmmm Chrome [PNL buggers of to have a search]
Maybe some powdercoating company near you can do it, if the part can be removed from the car and taken down there that is. I think most places can do things like rocker covers etc.