It looks to me as if Morgan are working on a mod, which involves raising the height of the steering arm on the upright, which is more or less the same as putting a spacer in, it would be nice if that cured it, but that doesn't take account of the fact that the steering rack ball joint and the suspension pick up points are different lengths, so they are all going up and down in a different arc to each other. This basic problem has to be rectified first, then the tie rods issues can be dealt with. There is also the fact that the King Pin Inclination does not bisect the tyre, nor even come close, not vital, but it all helps.
That is with my limited knowledge, there are one two others here who actually understand the varying relationships that all the different parts of the suspension and steering system have with each other, change one item and it changes everything else.
