The cheapest way would be a pair of levling coils or 2.5 inch lift coils.or some spacers.The down fall of doing this,is your going to put your balljoints at higher angles.nearly MAX at ride height. and you will have very little or no down travel.......doing this would be like twisting up the tortions on the 4wd or edge trucks.
if you want just a couple inches of LIFT, a pair of spindles would be the cheapst,easiest way.and wont eat up ball joints if you limit travel correctly. factory ride along with factory travel number
next, would be one of the 5.5 inch kits on the market.spindal, upper arm and longer coil springs.
fabtech is your base kit here that still uses balljoints....this kit is fine for a daily driver week end,fool around in the dirt.I would not consider this a rugged use kit at
Mcneiloff-road has a kit also, that uses a uniball vs the ball joint. I would consider this a daily driver weekend playtoy, taking it easy prerunner kit.That could take a bit of abuse.
(I know this shows a T-bar set up,but Chad also makes a coil spring kit that is very simular to this.
http://mcneiloff-road.com/photo_gallery/SV400002.html
http://mcneiloff-road.com/photo_gallery/SV400003.html
http://mcneiloff-road.com/photo_gallery/SV400005.html
your next step would be one of the 5.5 kits that come with a custom spindle
H&M motorsports
http://www.hnmmotorsports.com/popups/product.php?name=ranger_perf4_big
http://www.hnmmotorsports.com/popups/product.php?name=ranger_perf1_big
then if you want something "more" then your getting in to the high dollar kits.With coil overs,and such....