3. Brake lamp from which year of construction, model?

Hello, a question to the incarnate Mercedes SL fans. I am looking for an R129 from 1989-1992 with the M104 3.0l liter six-cylinder two-valve, unbasked, as original condition as possible. A car dealer swears stone and leg that with a vehicle from EZ 08/1991 was the 3rd brake lamp series or repurchase option. Also the vehicle has a grill with 6 lamellas and side claddings in car color?? That seems to me not true? The blinker glasses are not origi anyway nal. Here’s the link.https://www.autoscout24.de/…/…1822-71a6-41e1-8010-ea6341585176?… Can someone give me an informed answer? Thank you!