Remember that it's almost certain that it will drive, ride, and handle differently on-road with a lift and bigger tires. I suspect that's where you're still going to spend most of your driving time, yes? It may be no worse, just different. It may be much, much worse.
One misjudged rock or stump can do thousands of dollars of damage to the underside. Jeeps and such have skid plates for a reason, and you've got a lot more vulnerable & costy stuff under there. The long rear overhang _will_ be an issue; you'd need to lift it an absurd amount for it not to be.
Ever got a vehicle stuck? The heavier it is, the easier it is to stick, and the harder it is to unstick. Then there is the potential for leaks caused by the frame flexing.
Just one guy's opinion, based on almost 5 decades of off-roading. It's your dime.
Jim, "Mo' coffee!"
