Just like to add top this.
I recently completed my 124 wagon suspension set up and its fantastic, probably the best handling car I've had.

Eibach springs.
3 rubber spring assisters in front coil, (like those used for towing)
2 rubber spring assisters in rear coils.
Front limo bar
New front Monroe reflex shox
Rear sportline bar
Standard rear SLS shox
Front camber adjusted (unsure of amount but adjusted for less camber)
Toe in approx 2mm
225/45/17 rubber with 36psi (cold) front 35 psi rear

It handles like a go-kart now with a hint of oversteer.

I wouldn't suggest the rear E500 bar with SLS suspension as it gives too much oversteer, unless you intend to upgrade the front bar to the expensive Rentech bar.

I've had dozens of cars with lowered suspension and this is by far best.