Sounds like you've done your research. Save yourself the $160 and go do it.....that's the best way you'll ever learn. If you get stuck, just search around here and I'm sure you'll find your answer. I knew nothing about installing suspension components 5 years ago and to date I've installed and helped install many lifts and lowering kits(mustangs). The forum's your guide, it also helps having a buddy around too. If you're renting a compressor, get the strut style one and not coil....It'll make life easier. Check out the suspension thread sticky if you haven't already, that should give you everything you'll need. Good luck and post pics!
98 5.9 Limited - IRO 3.5", IRO short arms track bars Bilsteins, Addco, JK wheels, 255-75/17 BFG, Magnaflow, Flowmaster
04 Limited 4.7H.O QD, UC+BB, Bilsteins, 245/75-16 Duratracs Addco sway bar