Regarding the lift kit, I went with JSport's HRC approved 1.5" kit. But, I'm not contemplating changing the tires -- at least not yet.
To my eye, Honda built the new Passport a little too low to the ground. I found that adding JSport's lift kit made it sit the way (I think) Honda should have built it to begin with.
The lifted Passport still sits perfectly on the road, cornering, etc. As far as tires are concerned, if I stand next to one of them, it strikes me as plenty large enough. From what I've seen elsewhere, what size tire that will fit without rubbing, even with the lift, is a very minor size increase.
I'll attach my before and after pictures. You can also find these right on the JSport site. As I mentioned in another post, I'm a bit of a JSport fan. Going back and forth with email, I've made a friend there but I'm in no way affiliated with them. I just sent them the before/after pictures and they decided to use them.
Hope this helps someone.
-- Steve