Best way to transport a 64-66 Barracuda back glass

i need a back glass to replace the one in my car. The previous owner tied a tarp with bungy cords over it and left it in the West Texas spring wind. It scratched the glass over a large area, to the point you can feel it with your finger nail. I have found a few glasses, but always 2-400 miles away. So I have to go get one, or two, but will be hauling it in the bed of a 2500 Ram truck. So what kind of rack or cradle would you use to get it safely home? I have seen the pvc pipe racks that glass trucks use, but I’m not sure standing it up would be my best option.
Any help or pictures would be appreciated.