I use a Tarot racing hollow 22 adjustable swaybar (porsche 944 unit) with Porsche 944 adjustable spring plates, the dimentions work great.
You will have to make mounts but thats easy with some rectangular steel tube and some creativity (I recomend mock up with the suspention loaded BTW)
It's very nice, but not cheap (looking at $400-$550)
you can get them from
http://www.elephantracing.com/
http://www.elephantracing.com/images...earswaybar.gif
Although in the picture it shows silver arms, you can chose from red or silver. I got the all red ones.
Jonathan