Hello friends,
Yes, all of Jonny's answers are correct and I can only support his recommendations.
Original wood trim is still available from DaimlerChrysler but each item will be sold separately, i.e. windscreen wood trim (approx 500 $$), speaker grille (about 140 $$?) and wooden tray between the seats (a larger 100s $$ amount) but the parts are way too expensive. Furthermore, DC asks to send in your old parts first as size and color samples because especially the windscreen wood trim is custom fitted to each car.
Recommendation: Don't!
Better get yours redone or buy aftermarket (as Jonny said) or get other used original wood trim. If you are planning to restore your car completely, my 2 cents are to be patient with these unnecessary beauty parts. Usually they should be redone at the latest.
There are much bigger burdens to be solved first.
Best,
Achim
(~ under restoration)