I'd take a look at Bill Cook's (scoobysouth)'s thread here:
http://www.ft86club.com/forums/showthread.php?t=5413
Might have to sort through some things but he is using KWs on a BRZ Limited. Sam Strano (who has KWs installed on his FR-S) helped him out a bit with his setup. I think ride heights and damper settings are in the thread. He is using the stock swaybars.
I've only seen the Cusco 16mm (79% stiffer than stock) and 20mm (179% stiffer than stock) bars as front options thus far but I know others are developing them.