I have a 1991 W126 (orginal owner). The drivers side arm rest on top of the door panel is now cracked. I'm told to replace the arm rest I have to replace the door panel because it's attached. Repairing the arm rest won't last according to the upholstry shop I use. Salvage yards here don't have a suitable replacement. The list price on a new MB door panel is $528.00 Can anyone here suggest any other options?

Thank you.