I bought a progress rear sway bar kit, then i used 1.5" wide metal stock that was about 3/16" thick. i just made a basic "jig" and welded the brackets to the subframe, painted everything to stop rust and It all bolted up nicely. I need to post some pics.
The brackets I welded were jsut flat steel and after several weeks of hard cornering everything is ok.
The only drawback I had was that my sway bar was spaced too far forward and the end links were slightly angled, to solve the problem I made aluminum spaces that I slipped in between the flat brackets on the subframe and the sway bar bushings/mounts. Works great.