Pitman Arm Compatibility

this is the late 73 / later setup, again note the studs point opposite the early setup. You cannot mix and match those parts but they are determined by the box spline NOT THE YEAR of the car or the K member, but by the box

So it turns out one of my issues with my steering in the first place was that these were not the right parts in the first place. I had opposing bolt/taper directions on the pittman and idler and it seems the centerlink bar was modified to make the idler work. So I need to find myself a new centerlink, as shown in the diagram, with both bolts pointing down into it. I have not been able to find an aftermarket solution. Is there one? or do I actually need to track the correct factory part down somehow?