Understood ... but ... that means that whoever needs a set will have their VX up on blocks for a week or two waiting on the turn around + shipping time. That's what the spare sets were intended to avoid.
It'd prolly be worth digging up old posts on the subject. There were 2 other alternatives for the modification. Zeus had a novel approach that he used since he had an old Jeep bumper that donated material with the same curve as the diff bracket. Another member (sorry, can't remember who) cut off the arm from the bracket and welded it back on at a different offset. IIRC, that also rotated the axle when installed (good thing/bad thing???).