2" Spindles in the front, then shackles and hangers for the rear. A nice simple 2/4 drop.
I've been seeing spindles on Craigslist for $100 and less, shackels and hangers would be about $120 depending on the source. Plus $65-80 for drop shocks for the back. Drop shocks aren't needed on spindle only drops because you aren't changing the distance from the mounting points.