74 Duster, resto mod 6.4 conversion in Australia

Pretty sure B body are different to the a body arm as they run a different ball joint. My a body arms are the big ball joint tho. The QA1 arms are very similar to the firm feel. Just not sure if my engineer will pass
Would these be acceptable:
SPC/BAC 2.0 Forged Upper Control Arm - Bergman Auto Craft