Another option is Rock Equipment, PAC Racing, Kickass Offroad and a number of other companies all make kits like the Currie one so don't get stuck on it having to be a Currie bar.
Rock Equipment is a good budget friendly option and I have seen a bunch in use with good results. Available in 3" increments too where as others are only a few different lengths.
Lots of good tech to be found in here too:
Sway Bar Tech??? - Pirate4x4.Com : 4x4 and Off-Road Forum
I made my own sway bar out of an old Toyota torsion bar on my linked 1ton Toyota and it actually ended up working pretty darn well considering I had about $80 in material in it. More of a boredom project than anything to see if it would work, but it worked just fine and fixed a lot of the body roll issues I was having thanks to air shocks in back and very soft leaf packs in front.
Not sure how much benefit we would actually see going to a swaybar like these on a IFS 3rd gen simply because the front does not unload and twist the way a linked front or leaf sprung front will and end up transferring to the rear unloading as well, so tunability isnt as much of an issue and the stock one is already packaged relatively well and using extended rear sway bar links fixes a lot of the issues with the flex being limited by the stock links.
That said...trying new stuff and innovation is cool. Go for it.