ok. an add a leaf is a kit where you add either a long leaf, or a short leaf to the leaf packs in the back. usually it results in about 1.5-2.5 inches of lift in the back. torsion bars are the bars that run from the lower control arms to about the middle of the frame. they replace the coil-overs on earlier 4x4's. you can crank them up (change the setting) to add about 1.5-2.5 inches of lift in the front. unless you are prepared for a LOT of fabbing, and welding, switching to an axle-under IS NOT, i repeat, NOT a good idea. it would be better for you to get leafs that are arched differently (ZR2 springs, or such) and add a leaf, then get longer shackles (what connect the rear of the leaf springs to the frame). If you buy a lift system, like from superlift, trailmaster, skyjacker, ect, it is a complete kit for front and rear. You will not need to fab any parts for the front. DONT fab any parts for the front. its a bad idea, unless you're a mechanical engineer with really good welding skills. it sounds like you are going about this the wrong way - go to a few suspension websites, and browse through them. you'll learn a lot. you really need to do some research before you attempt a big lift like that. also, have you realized what the vehicle is going to handle like after you lift it that much? its going to be terrible. a big lift, like you want, is usually only necessary if you plan on hard-core wheeling. i know you said you wanted it for show...how long have you been thinking about this? if you really want a liuft that high, im pretty sure superlift has a 9.5" suspension lift. it will be the complete kit (im pretty sure). this is also not a DIY project - be prepared to pay a good sum for installation. how much will you be driving this vehicle? in what conditions? do you have the mechanical skills to fix something if it breaks?