1987 Cadillac Deville in good condition, motor has been upgraded to newer model

1987 Cadillac Deville in good condition, otor has been upgraded to newer model* This car has been owned and maintained by an elderly couple for the past 20 years.* The motor has been replaced by a newer model one.* Cosmetically the car looks good interior and exterior; however the headliner is drooping somewhat.* There are no cracks in the seats or inner panel*** Note: window motor on driver's side needs to be replaced ****** A/C doesn't work very well ***