Now I get it...... You will probably get close to 4" of lift if you do a SOA on the rear. To get the front up with out after market kits, you can crank up the torsion bars a bit. You will only get about 1 3/4" - 2" of lift out of the front. If you go more than that you will have problems. Instead of doin a SOA you might look at some other rear spring options like longer stock style springs from a mazda or a chevy. This way you can keep the the spring pads under the axle for less axle wrap and stock springs are cheep. You will have to cut off the front spring mount and move it foreward but that is easy to do. This should give you a bit of lift, load carrying ability and it should be easier to match the front. Stock Toyota rears are about 48" long, mazda's are 56" and chevy's are 63"