no such thing as a cheap lift for a 98+ 4x4. 3" body lift runs about $200, that's the cheapest bet. Superlift 4" is about $1500. RCD 5.5 lift is about $2000-2500. Those are suspension lifts.
4wheelparts.com, check out our vendors we got here....like Underdog Performance. I think they carry the bodylift, not sure. Ebay has the bodylifts, so does SummitRacing.com