Hello all! I am from Massachusetts and I need help in locating an interior for a W126c 1985 560sec. I have a couple of questions if any one can help.

1.) Will a later model sec interior fit into my 1985?
2.) Are there any after market suppliers for interiors on this model?
3.) Any suggestions on redoing the existing interior?
and 4.) Has anyone done something similar to this?

Thanks for your help and thanks for the wonderful forums.