hey everyone, it's getting harder and harder to resist getting a lift kit and getting 40" toyo open country m/t tires (so far they look the best to me at this size) SO....
Right now I have 35x12.50 mud grapplers on 20" rockstars, I love this setup but bigger IS better

These tires and rims are only about 6 months old with maybe 3k miles.
Main questions and advice I'm seeking:
1. Will the 40" toyo's fit on my current rockstars? I was looking at Toyo's website and it looks like will, but it's not the "recommended" size match up.
2. What kind of lift kit should I get ? 2/4/6 inch? Brand? My H2 is 2005 with air ride.
Thanks a ton guys!
Current pic:
