If you are asking me for a 100% hard fact guaranty I cannot give it to you. The only real difference between the 2wd and 4wd 4Runners is a transfer case and front differential (yours is lighter). 0.85 is going to give you a little more than 3", 0 will give you whatever the springs will gain you. Since you're not carrying the extra weight of the front differential and other stuff I imagine you'd be happy with whatever the standard 2 1/2" springs will gain you with the shocks set at 0. But I'm not you. I ended up with pretty much 2" all around on my Trail and that's what I was looking for. No one will be able to tell you to the 1/4" what you'll end up with. There are too many variations from one vehicle to another.
That 1/2" either way will be more in your perception than visible to anyone without a tape measure standing next to your rig anyway. It's easy to over think something like this.