Left over from my 1994 E420, a NOS seat bottom spring set, as well as the frame, complete with the hard-to-find foam cylinders that fit inside the coils and keep the front seat area from collapsing as easily. I forget now what the triangular shaped foam pieces are used for, think they are another type of support. I also have a another set of just the springs for the seat bottom that came out of my 1994 E420, as well as the original horsehair pad, both were removed when it had about 65K miles.
These items should work on any 1994-1995 W124 vehicles with leather seats, except the 500E and E500 models, sorry! Looking at the GAHH website, it looks like they should work with the 1989-1993 W124 leather seats as well, they may work with earlier W124 models seats or the MB-tex seats, but I can't guarantee that.
Asking $200 for the lot + shipping, but open to reasonable offers.