1985 Mercedes 300D- Runs Great; Has Rust Under Passenger Side

I have owned this classic for about two years. I bought used from a specialty dealer and it was used as a second car. I had the new A/C update installed (works), rear power window motorinstalled, ew brakes / rotors, nd an aftermarket CD playerwith AUX capabilities andnew speakers. I have all work records since my ownership.She is a cruiser; don't get it expecting to race!On Oct-21-15 at 08:09:57 PDT, eller added the following information:

There is a large rust spot under the passenger side that has been reinforced with a steel plate. It may be properly repaired for a small investment, rsold for parts.