Could G3's middle turret have been moved during a later rebuild?
Short answerProbably. Moving it forward would be easier than moving it aft, and a 1930s version would likely have adopted that arrangement from the outset.
NotesA G3 redrawn in the 1930s would probably move its middle turret away from the position behind the forward tower. Shifting it forward is judged easier than moving it aft. The comparison with Nelson's profile suggests that combining the separated superstructures could provide room for the change. It supplies a possible arrangement for the hypothetical redesign, without a detailed reconstruction plan.