Body panels the same?
 

I'm considering a patch panel on the passengers side rear wheel arch on my W123 coupe. It's the only area of corrosion due to a leaky rear window seal. Are the sedan rear wheel archs the same as the coupes? It's obviously easier to find a sedan donor than a coupe. Thanks.

I believe that they should be. Even finding a sedan panel proved difficult for me though. It took several weeks and several dozen emails to track one down. Most people I contacted wanted over $100 for the less than 1 ft. square part of the panel behind the wheel arch.

Since then I've found a source for repo panels, Sherman parts. $50 for a wheel arch and the lower trailing panel.

Can you post a link for future reference?

wow, they are cheap, I wonder how the quality is? here is the link
http://www.shermanparts.com/

Another one