from what i what i hear, the rears are a hub swap.. im removing them from the z31's a arms now, and then it is measuring time, coilovers will happen for me too, or i will use a set of s14 springs i have to go with the koni adjustables that are in there now.
i would have to weld on the perches of the s14, but it would save me some cash for now .. as i first want to see if this set up brings anything ( get some miles on it!)