I think all you are missing is the cut out for the radiator hose. Rob adjusts that cutout before he sends the cover out. It looks like that cover should fit. I snapped the receptical for the rear mount on mine. I found a recessed nut and screw gizmo and screwed it to the cover. I think that cover should fit. If you have a dremel try removing some of the platic around the radiator hose. That should help.
I also ground off the Mercedes lettering, it was a bit too much Mercedes in your face for me. Sanded that area smooth and then sprayed it with a Black texture paint.