The '93's have a different set-up out back than the new ones. If I remember correctly, you can take out that coil spring in the back, mount a cylinder where it was, run accumulators, and you'll be good. I'm not 100% sure, though, so don't run out to the garage and set it up that way just yet.
you can get more lift if you mount a powerball or hyme joint towards the front of the trailing arm...and just cut a whole and weld a plate for upper donut to push against. Dont get much lift when mounting where old spring sits. Ive seen it done using 10" cylinders and runnin mini-coil springs. Lifted the ass of my buddies cavalier to my shoulders and im 6 ft.