1983 mercedes-benz 300d base 3.0l

This Car drives great but needs work . Floor Board under passenger seat is rusted though. Rust on quarter panel and truck section. Interior drivers seat is worn all other seats are good except they are faded. The car was original purchased in Germany and owner imported into US years ago. One owner until owner past away and selling for family and title was transfer to me. Speedometer is not working and stopped at around 145,000 . A/C and cruise control not working but all windows and locks work. The cars runs great and sometimes I drive it to work. But needs body work.VIN Number WD1231301A010730