Large tires smaller rims vs larger rims vs low profile tires

[H2BRUTE]

I currently have 18" billet MC2 wheels and nitto tires on my H2 and was thinking of upgrading to 24" wheels. I know the wheel guys say that the bigger the wheel, the smaller the tire to keep the overall diameter the same. I have a few questions regarding this. If I first install a 4" lift, how big of a tire can I put on the 24" wheels and not have a problem with rubbing, etc. When you install a 4" lift kit, what else has to be done to the vehicle? Next, regarding low profile tires, do they really compromise the ride. A lot, somewhat or a little.. I won't be doing any offroading, but still like the current ride and wouldn't want to sacrifice any of it, not even for the look..Your invaluable help is always appreciated..Thanks