how much lift do you want? daily driver or weekend warrior? and what are you gonna use it for? what size tire do you wanna run? how cheap do you mean by cheap anyway? like under 1000$, or under 200$??? i mean at 3"+ you need new lca's, you can do add a leafs and shackles to get cheap in the rear, alotta guys build bastard packs with mid 90's dakota springs too. you can do spacers up front for cheap. honestly though, a full 3-3.5" kit with lca's, shocks, full packs, and new coils, tcase drop(or shim the axle), brake extensions, can be found for reasonable prices all over for around 600$. thats just a start though.... youll need to address steering issues too and then comes a neverending list that starts with a lifted xj...