The last 3 shown are the hot ticket. The 1st 3 still have the Circlip in the wrong spot. I've seen more people blow off that circlip that break it at the thread. All we really need is an X3 upper ball joint design but for the lower Pro R A-arm.
I went sandcraft they were pricey but hey i dont want it breaking and messing up more crap or possibly flipping or rolling and totalling the car over a stupid part that could have been avoided.