I found this today, if you guys are interested let me know its an authentic AMG cover and it fits (i test fit it and shut the hood), the v8 nose piece comes with it but its pretty much unusable but I guess you can dremmel it make it work, or just use the v6 nose piece and paint it

Let me know if interested PM me

*This box is a direct fit for any 500 series Mercedes (s500, e500, sl500, clk500) too
Note: the front piece will work with this application