lowbuck Lowering front&rear suspension ?

Cheapest way for the front would be to adjust your torsion bars (have to get aligned afterwards though). If that isn't enough, for "relatively" cheap, you could get some 2" drop spindles.

Cheapest way for the back, I would suggest these adjustable lowering blocks. They are available in a couple different heights. the 'adjustable' part is just front-to-back but makes it very easy to center your wheel well! I bought some Mancini leaf springs that ride amazing but had the *** end up too far. These are what I got to fix things while they settle (if they settle). I think they worked well.