I have the following parts for sale for a 1979 Series 116 300SD, which should also fit the 450SEL or any other 116:
Rear bumper Hood and Trunk Doors Rear Seat (black, excellent shape) Wheels (2) Windshield Wiper Motor
Parts are silver/grey; primed for repainting.
Located near Daytona Beach Florida.
Dave 386-235-4276 snipped-for-privacy@bigfoot.com