Hello, I got my hands on a w124 1990 coupe, and I'm planning to fix the interior and add more options to it (OEM)

I want to know the compatibility of the following parts from a sedan or wagon with the couple.

Rear headrests and it's folding mechanism.
Parcel shelf.
Rear windows wiring loom and the window regulator.
Rear roller blinds.
Front door card.
Bonnet.

Thanks 😁