I have a pair of grey 95 E320 seats that I bought on ebay for their seat controllers. I can't remember whether there is an armrest attached or not. The seats were totally surrounded by that shipping plastic and we have never unwrapped them (got the controllers off the bottom and they sit). Email me at work on Monday if you are interested:
steveb@atlantic.net
I am pretty sure they were out of a 4 door though and the seats would be different on a 2 door (as they must fold forward). Don't know if the armrest would be the same, but I can tell at work.