I have a 1993 W124 300D that wallows a little much for my taste.
The previous owner installed new shocks but they are cheap and they have about 40K miles on them by now.

I am considering Bilstein Heavy Duty's all the way around but I have considered another option.

Do the Bilstein Sports lower the suspension any?

I ask because I carry anywhere from 40-80 pounds of stuff for work in my car and often it's in the trunk or the back seat.

I am considering putting the HD's up front and some Sports in the rear.

Any ideas on this?

I want to avoid nose lift because I suspect that this at least partly to blame for my relatively poor fuel mileage (26-28mpg in almost all highway driving).

In my W123 300D I got almost three miles a gallon better and faster acceleration when I removed all the tools from the trunk right before I sold it. I had Bilstein HDs all the way around on that one but it still didn't keep the rear from sagging, raising the nose.

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1993 W124 300D
-297K on the clock as I type this.