1983 Riviera Convertible, Garaged for the last 10 years

This was my late brother-in-law's car, which I am now selling for the family. He purchased it in June of 2002 from the original owner. Because he moved out of state, the car was garaged about 10 years ago and never driven again. The body appears to be perfect, the interior is pristine except for the driver's seat, and the vinyl cover on the seat belts. The top needs to be replaced as can be seen from the photos. There is no appreciable rust. The '83 Riviera was the Indy 500 pace car from that year, and the car comes with a framed print of the actual pace car.