Searching for Metal closet door tandem from the 1950's

I have taken the metal doors off the tracks because they kept coming off the track. I was told that I need new tandem hardware for the top of the closet doors. I have 4 doors. The house was built in the '50's, these are the original doors. The salesman at Ed Young's True Value told me that you would have these if anyone has them. I will need 2 for each door (8). If you have the plastic bottom piece for the track on the floor, I will need 4.

Thank you so much.

Mary