I have bin running SS/Springs and changed my combo a fue times over the years. I tryed the Ranhcos and The mopars long shocks but thay did not have enough bomp and would let the rear bounce up in the car after the hit . What has worked good for me are shocks from a 94 4x4 Dakota, I have a half leaf on top of the front section of the springs that goes from the front spring eye to the back of the spring perch, thay are clamped at every leaf in the front section. I allso use lowering blocks to get the ride highth. I like the rear no more than 2" higher than the front mesured at the sill.
Good luck and have fun