You are looking for a new or good used door or skin for a W124 Coupe..
#1. This should be in ShopForum > Do It Yourself Links & Resources
Bodywork
http://www.peachparts.com/shopforum/forumdisplay.php?f=83
AND
ShopForum > Shop Swap Classifieds
Parts
http://www.peachparts.com/shopforum/forumdisplay.php?f=8
#2. simply call or e-mail Phil for assistance.
Phil has access to MANY MORE PARTS than shown here!
Toll Free 1-888-333-4642 or
philip@peachparts.com
#3. There are many listings of members parting out complete vehicles in
ShopForum > Shop Swap Classifieds
Parts
http://www.peachparts.com/shopforum/forumdisplay.php?f=8
here are some threads I found for you to check,
ShopForum > Shop Swap Classifieds > Parts
Parting Out-2-115's,2-116's, 3-123's, 2-124's and 3-126's
http://www.peachparts.com/shopforum/showthread.php?p=890883
124 parts for sale
http://www.peachparts.com/shopforum/showthread.php?p=289588
1988 300e, Everything For Sale
http://www.peachparts.com/shopforum/showthread.php?p=954829
FS: MANY W124 Parts & more! Detailed PICTURES! GREAT Items! GREAT Deals! CHECK IT OUT
http://www.peachparts.com/shopforum/showthread.php?p=582213
Parting out w124 300E
http://www.peachparts.com/shopforum/showthread.php?p=1146451
w123 w126 w124 parts
http://www.peachparts.com/shopforum/showthread.php?p=1065437
For Sale W124 Door $25
http://www.peachparts.com/shopforum/showthread.php?p=1051599