Hello, I am looking for a roof vent cap that came on the 70's GMC Gypsy Van or Vandura. It is white in color. It must have no cracks or breaks of any kind. Do you know of any old Vans sitting ready to be junked out with the factory roof vent? It is very flat on top, no bubble. All I need is the cap. Remove the hinge pin by tapping it out with a nail and pull from the opposite side with a pliers is all it takes to remove.