I'm pretty sure you can order the material through MB as well, or at least cross-reference the colour. Since I don't have a working EPC, I go to neoriginal.ru, select 'Mercedes' from the drop down menu and type in my VIN and will show this in the 'coverings' sub-menu.
Hey - it looks like they've updated that site and you can't access the vin search, but the old Vin number search and product catalogue seems to still be up - use this URL to get the part numbers and pics:
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