Brad,
What type of tool kit are you wanting? Our illustrious president, Mike Mizesko, has been selling these over the years.
If it is for a different type Benz, a 107? These are relatively easy to find on eBay. It is also sometimes much easier to source the individual tools and then put together the tool kit. The spark plug tool and the lug wrench (without the the bevelled tip) are very easy to find. The tools were not specific to the car (in most cases).