unless your planning on running a 40" tire or more, SOA is not needed... asuuming your not shy with a sawzall and know what springs to use.
I recently built a CJ5 for a friend, we used 4" BDS front FSJ springs front and rear, for the rear we swapped around the leafs in the pack with some regular 4" lift rear CJ springs (basically change the rate). This converts the front to a 2.5" spring, about 6" inches of lift over stock, about 5" of total stretch F&R, fit a 38" TSL with only very minor trimming to the rear of the rear wheel well.
I'll look for pics but the price of the springs along was way less than a "kit" still had to buy shocks, in this case, we ran off the shelf cheap autozone shocks, homemade brake line extensions to the tune of $10, home made driveshafts and a modified dodge pitman arm.
long story bit longer, stay spring under if you can, way less hassel and trouble.