Don't be so sure. The former www.bergwerks.com (now bankrupt, but the website is still up with a contact to the owner to buy the domain) made a kit to retrofit one touch windows to the W126 Mercedes (a car made between 1979 and 1991 which never had any one touch windows). They might be the person to contact because IIRC they still had some of those kits on the shelves, or at the very least they might know where to get the contact strips you need to put in the tops of the windows.
Richard
Richard
