Put this together, but was finally able to get my hands on an OEM kit. See below post. Buyer pays for shipping.

It would include the Mercedes spare, that is in great condition, and the custom made adapter.

Spare Tire 4200/GS ALTERNATIVE SPACE SAVER FROM A...

Wheel Tire Automotive tire Tread Locking hubs

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Tire Automotive tire Wheel Tread Hubcap