These look like them. Price is right for genuine AMG rims. Around $500 EA. and that's for reconditioned originals.
You're better off with replicas unless you're prepared to pay around $2800 for a set of 4 original AMGs.

Mercedes E63 | Midwest Wheel and Tire | New and Used OEM Wheels



Or maybe these...

http://www.midwestwheelandtire.com/product/3402/85059MG