I bought a set of neuspeed springs from neuspeed direct for $125.00. They in fact have the same part number as the H&R's, and are believed to simply be remarked H&R's with neuspeeds name painted on them. There is an area on the springs which appears to have had another name sanded off. I love how they ride, and handle. The car feels great with them, sport shocks and stiffer swaybars would really complete the package, but just springs works great for now.
Talk to other owners as well for their opinions. I found mine in the neuspeed clearance section if I remember correct.
I used the 2 bump front 3 bump rear pads, and I think the car sits great, it is lower, you can tell, but it is not slammed.
'92 300CE - Sold
2004 C240 - C7 Wheels
2015 ML350 - P1, Pano, Ash poplar wood, Sport Dinamica interior, Running Boards Keyless go.