Hi all, sorry for late reply; I've been travelling.
The fabric and vinyl supplier is SMS as some have guessed. When I spoke to SMS they said the material is produced new in-house according to the OEM Toyota specs/drawings. As others have mentioned, none of the original new old stock ~30 year...
I am working with a reputable classic car upholstery shop on making a set new OEM-spec door panels for my FJ60. They will have the OEM brown vinyl and OEM brown/tan cloth. New fiberboard backing panel with the proper slots for the plastic clips. Will reuse the curved steel piece at the top...