I moved the thread to the 2019+ section of the forum.
The size of the rim is pretty much open but if you are planning to off road, the smaller the rim the better for more sidewall height and less chance of damaging the rim.
For bigger tires, going from the factory +55 to +20 offset seems to be the popular choice for tire clearance and minimizing tire poke out of the wheel wells.
Above a certain tire size, you need to get modified bash bars for the tires to clear them or take the risk and just remove them. I believe the cutoff for the bash bar is anything larger than a 32" tire. Others will have to confirm this and fill in the details.
As far as the tire size limits with that lift. Someone else will need to tell you that information. My guess is 35" tires but that is just a guess.