Gentlemen-- Please check out this link:
http://www.prestigeautotrim.com/usa/usa/tops/mercedes_hoods.htm
I have never used this place but I found it on the Internet -- the reason I am pointing it out is for the "headliner" kit they show (offered for the 107 cars) when you scroll down on this page -- I was always interested in doing this, but never got around to it. They also have tops for the 129 cars at substantially less than was quoted in the first post. So check it out. (this may be the same or related to the site noted above!)
Let us know how this is if you do it.