Are you looking to lift or long travel your Bronco II? They are not usually the same thing. What do you want to use it for?
desertrangers.com seems to have some of the best information on the web when it comes to building a desert vehicle (in my experience). The best advice that I can give is decide what you want to do with your truck then research, research, research. Learn how to use the search button to find most of your answers. People should be fairly willing to help you with the questions that you can't find answers to through a simple search.
Desert trucks generally take a large commitment of time and money to build. If all you are looking for is a simple lift or the look of a desert truck, that is ok, just set your goals and research accordingly. There are also some very knowledgeable people on this forum. Just be open/honest about your intents and be more specific with your questions. Good Luck.