Advice on 190 2.5 16V

[lotti]

Hi folks, after 10 years absence I've all but secured a deal on my old Mercedes 190 2.5 16V. The intervening years haven't been too bad to the car but it will require some light sympathetic restoration. In particular the panel behind the bumper/kit on the rear o/s quarter.
Can anyone recommend a supplier of genuine or NOS panels that can help me out?
Thanks in advance.
Cheers, Mark