A damper really isn't a requirement, though if you're going to put oversize tires on it (like I did with mine), they do help.
For sway bars, I have the front and rear kits from CPP. They work very well, keeps it relatively flat in the corners. The only gripe I have is with the front kit, the brackets that mount it to the axle were too small to fit over the it. The instructions mention possibly needing to grind the axle to fit, I wasn't comfortable with doing that, as it would have required about 1/4" total to be ground off. I made new mounts for it instead, sized to fit my axle.
