Any coil over suspension can compensate for the lean. You will just need to adjust a few times before it all settles in. Worse case a small trim spacer in the rear might be needed.
The lean is mainly an issue for those with fixed coil lifts.
The install is where KDSS is a PITA. There are techniques to wrestle the sway-bar back on.. but it takes practice. Most people strip the bolts trying to put it back on. It's not anything like a regular sway-bar with links that just line up easy... the KDSS swaybar bolts directly to the LCA. Even at rest on level ground....There is tension in it.. A combination of straps, leverage, clamps, jack, helper is required. Each time I do one.. I think how much I never want to see KDSS again.. i still have not found the magic technique that works effortlessly (but I think I'm close)... If I had a business. I would charge at least 1.5x for KDSS lift install. It really slows things down and requires some experience with it. And if you strip out those LCA nuts.. you are SOL and have to resort to time certs.... I don't like working on things that don't want to go back together... It just feels wrong. The tension in the system is what causes the lean. I just wish Toyota would have spent the money and designed it with proper links... I'm sure people would have been fine paying a little more. I've heard the LC version is much more manageable, but never actually been under one to see it.