As far as I've seen, there's only one person on the internet that has done this on a w202. Check out page 71 for a photo.
http://www.alive.se/projekt/mercedes...-2-bandit-3086
It's all in Swedish, he doesn't detail how he did it, but looking at the thread you'll see just how much he had to strip his car to perform such a mod. With all of the electronic and climate control components in the car, there's just no room to hide something like this under the dash. That being said, I think he also has a ratchet style shifter like you wanted to get.