2hrs later after cleaning/lubing and dismantling the runner a bit of metal dropped out of the hinge attached to the door. I can open it now, but I am missing half a piece of metal...

Cant find any bits on GSF for the hinge, but it aint the easiest to look for?
I found a "cam" on JK, but they suggest the van needs two...
It's an early door on an '81 so not sure if they are different.
Any suggestions, experience I'd like to get the bits ahead of striping it down as I have to store it outside and dont want it left with no door!
Any other parts I should change while in there that will be worn on the runners..