If I put a 2in. lift on the front suspension, would I need to put an extra 1in. suspension on the rear?

With labor your looking at around 500 for a leveling kit installed. A body lift puts spacers between the body and the frame to give more clearance for bigger tires. While suspension lifts raise the entire vehicle higher. Suspensions lifts are better performance wise, but if its only for looks and to fit the bigger tires a body lift is fine. Tire size really depends on the size rim you have right now but a 285 is the widest to not have any affect in turning.