I'd check that the $500 kit comes with everything you need up front. Some lifts don't come with the extended (believe it's called) pitman arm and other pieces you need to get it properly aligned. Does this kit come with everything you need to lift the rear? Also you will probably need extended brake lines if the kit doesn't have them. Does it come with new shock absorbers also? I'm just saying be cautious, study up so you don't end up needing another $500 in parts to finish your lift.