Pirate Jacks front disc kit question

Tabs on the lower control arm for sway bar were welded on in a separate process. The welds like all welds of the age were complete garbage. I have several pairs of these control arms and I’ve been fixing some of the welds. The control arms are most likely stock.
Clearance issues come into play in this case because the lower ball joints are completely different. Mounting locations are further apart and the front ball joint mount is lower than the 67-72 A body. If you want to buy additional ball joints they are the 68-72 B-body and 73-76 A body. All the same. Not super expensive.
The best way to fix the issue is to go to the 73-76 swaybar. Seeing as how you are well into rebuilding the front suspension best solution is to change the hardware. Shallow nut and shorter bolt should clear. Just remember that the hardware is the only thing holding the suspension together. Use grade 8