I have air on all 4 corners with a notch in the rear. Would suggest you consider the notch. not that difficult, they even have bolt ins if you don't have a welder. buy stuff in pieces not kits and you can save a $. I now can have a severe drop,(the frame will be about 3" from dragging) and can lift it to normal position for driving. Haven't gone to the drop spindles yet as that was more expensive than the way I went.
Considering it tho