This weekend was very productive! My neighbor Brett helped me locate the rear axle under the car and we have it mocked up in place. Upon measuring, and remesauring we got it pretty square, within 1/16". The welds are tacked in for now, and when the body goes on a rotisserie, then final welds can be done with much more ease.
The upper link brackets needed modification to fit the contour of my frame. I also made a jig to help ensure that the left and right side were square to one another.
The panhard bar isn't on yet, but the mounting bracket for it needed cutting to make it fit.