1976 Mercedes-Benz 450 SL for Repair or Parts. "Please read description"

Price: - Item location: Madison, Wisconsin, United States
  • Condition: Used
  • Make: Mercedes-Benz
  • Model: SL-Class
  • Type: Convertible
  • Trim: 450 SL
  • Year: 1976
  • Mileage: 63,000
  • VIN: 107 044 12 028396
  • Color: Grey Blue
  • Engine size: V8
  • Number of cylinders: 8
  • Power options: Cruise Control
  • Fuel: Gasoline
  • Transmission: Automatic
  • Drive type: RWD
  • Interior color: Blue
  • Options: Convertible
  • Vehicle Title: Clear
  • Want to buy? Contact seller!

1976 Mercedes-Benz SL-Class 450 SL

I'm selling my 1976 Mercedes 450 SL for Parts or Repair, the odometer on the car shows less than 63,000 miles but I can't confirm that it is the real mileage. The car starts but will not staying running and doesn't seem to change gear while moving.
The 450SL should have a 4.5l V8 with the engine number 117.985, instead MINE HAS A 6.9L V8 WITH THE ENGINE NUMBER 100.985
The car has a crack on the windshield, and on the dashboard.
The body has some spot rust, see pictures
The interior needs upholstery.
Please, contact me if you need more information.
Thank you,