Then it is easier to find, it is the late type.
You can try to fix it as advised in the previous post. For the US/Canada options are, I think:
1. Ebay
2. Bud's Benz
3. Authentic Classic
4. Mercedes dealer (or Classic Center), PN A 002 545 29 24 - not the most expensive option, as one might think; this is where I would buy
5. This forum perhaps in Wanted to Buy
Suppliers in Europe, e.g. Niemoeller also have it. Th elate type is not difficult to spot. The question is the price...