I have about .5-.75 degrees of lean.
See the photo below. Don't look at the black water pipe as level, it's not. Look at the slats on the wall behind it, it's a tiny bit low on the drivers side, but not terribly. With long travel being such a soft suspension it accentuates how bad the weight distribution is on the stock 4Runner, i.e fuel tank, battery, steering column, etc.
What we've figured out is that stronger rear springs are the solution, so we have some custom made Prado 150 600# 3" lift springs coming, that should support the back end better, which should help lift up the back end uniformly, thus allowing us to raise the front coilovers, and even out the lean and make it dead level.
We're taking the middle/right rear seats. I'm leaving the left rear seat so I can still have two passengers. And I'd want to look over my shoulder to the right to see her anyways.