my advice rocket is you come up with a plan for short term, intermediate and long term for the car and decide what you what from it, how you want it to drive and plan accordingly
i have front and rear ARBs and rears (and suspension) are set up specifically so there is some more rear end movement, that's how i wanted it and may not be to everyones taste
to date i haven't done WALK or S3 arms as wanted the major surgery out the way first, in reality i will be adding the Superpro ALK as feedback seems the bushes is better and may do the alloy Superpro ones but i am now in the period of diminishing returns on investment