ICHIBA V1 20MM WHEEL SPACER 5X112/66.5 MERCEDES BENZ | eBay

Here's 20 mm hub centric spacers and as you can see they cost around $100. Then you'll need new lug bolts that are 20 mm longer than the stock ones. More money. Be sure to ask what kind of seat the lugs need to have. Stock are ball seat and lots of aftermarket wheels have conical seats. Lots of details to check. I ran with hub centric spacers for a while without problems, but it's preferable to find a wheel that fits without them if possible. Happy wheel hunting.

Les