Sway bar kit best options?

Sway bars don't affect the ride unless you hit a pothole with one wheel. In other words, they only come into play when one side is loaded different than the other side — that's how they prevent body roll. But if you, say, hit a full lane speed bump straight on, they have no affect on the spring rate.

I do concur that Hellwig makes a very nicely engineered kit. Their hollow swaybar save weight, as well. The "bare bones" cheap option is Addco — you would likely have to modify their kit for satisfactory fit and performance.