Others installed a 1-2inch body lift in addition to their current 2" suspension lift. In order to regain power and get good fuel mileage, you might need to re-gear also.
If it is an alloy bar, you need to do some serious reinforcement. You might also need to fab a cradle to hold the winch. What brand/model of winch are you planning to get? There are some many options like Smittybilt winch and the expensive Warn.