Here is an Ebay link to an operation in Latvia (yessss) ... that has almost everything for many imports. I have purchased from this outfit right through Ebay, had great service, reasonable charges and shipping, etc. etc.
Go to Ebay -- search for oem245 store, search for the parts. I saw the one you need, I think, on the site this AM.
Left this out --
Try another outfit I use via Ebay -- "Guaranteed to Fit" .......... I've had decent luck there. California warehouse.
I have an original 1984 "Convertible" and finding parts is a monthly chore for me.