The easiest thing would be to just get the 4" spindle lift from Rough Country with shocks and a small block. You could do coil spacers but unless you have good automotive knowledge, time, and multiple jacks.... It's not worth the effort to just go the 2" for the spacers. (trust me, I've gone through 3 different spacer, two 2" and my current 1", it's not a short or easy process... Though not as hard now that I've done it three times)
You don't have to get the full kit if you don't want to, but after you install the spindles you might want the block to level everything out. If you go with the spindles, it would be about as high as a ~2" leveled Z71.
Also the spacers put a lot of stress on the frame and the front suspension, another reason to just get the spindles.