65 valiant tail light gaskets?

I need rubber gasket for tail light housing for vibration..fits in between housing and the body.also the white foam style gasket on inside of housing for lense..and any other ones i need..i am replacing destroyed back up light and also brake lense that is busted out.but i tried to save gaskets to no avail they are shot..but need gaskets before i replace lenses..anyone know where i could get some used or aftermarket? any help would be great ..Thank you.