Euro C180 suspension parts

[Hocky]

Have asked this in other forums and got no answers. I need the part numbers and advice on which shock absorbers and springs are correct for my car which is a 1994 Euro C180 auto Elegance. On the lift I noticed that my C180 has rear shockers with the H1 printed on the barrel while same aged C180s have the H6 printed on their barrels. Do the higher numbers indicate softer or harder rates? Mine appear to be lower on the ground, but this could be the springs. The ride appears to be harder although the famous Benz ride still is there, the floaty feeling over the road, not like the Toyota suspension which can absorb more of the rougher bumps, but cannot give the smooth, floaty feeling of mine. Over heavier bumps like railroad tracks and tram tracks, mine feels and sounds a lot harsher than the Toyota's. Why is this???? Also, the driver's side front appears to be lower into the ground like its sagging. Is this normal for a 1 driver car usually without passengers???