I just acquired a 2007 Suburban that will be my tow rig and hopefully mild expo rig. I don't plan on doing anything hard core with this, but I do want to add a leveling kit and larger tires. I see different types and shapes of leveling kits and am wondering which one is the best and will cause the least amount of problems with castor and ride. I do plan on camping in this and will be setting it up down the road. Any suggestions are welcome.