You could probly do it with a friend or 2 in a day and only have to buy pizza and beer. Follow the crappy instructions that came with it... as well as the Body lift tech info extravaganza... found here :
Body Lift 3” – Tech Info Extravaganza
All you need are the right tools to begin with and you will save yourself a lot of money and learn as you do it. It's really not that difficult.
2004 Ranger Edge 4x4, 4.0L SOHC, 4.10's, Black, Step-Side Bed, Quad Cab, 3" PA Body Lift, Underdrive Pulleys, Flowmaster 40 Catback, E-fan
33x12.5 BFG AT KO, 15x8 MB Motoring Overdrives, STX/Sport Grille, Explorer OHC & Auto-Dimming Mirror, Blacked Out Headlights & Corners,
Smoked Altezza Tail Lights, 35w 5000k Hi/Low HID Heads, 35w 4500k HID Fogs, Hella 500ff's, Ultra-Gauge, Red LED's Everywhere