Thanks for your service and welcome to the forum,
For the price I would just buy the spacers. Fir 33's you'll need at least 3.5 inches of lift, I would go with a 3 inch spring lift and a 1 -1.25 inch body. Zone makes a great combo kit for cheap, all you'd need to add is an adj. track bar.
Kudo's for building / doing it yourself.