Using Smurfs information above I have reworked my drawings so that the major weaponry falls within the armoured citadel as shown on Bombheads original King George V drawing. The original drawings I did convert to 14O 01/36, but from Smurfs descriptions there is no 15" with 5.25" equivalent (and not wanting to lose a nice drawing) so I have labelled it 15D as if 15" were to be proceeded with a version utilising 5.25" would have had to follow to match 14O. (My opinion only.)
14O 01/1936
15D 01/1936
Seeing them side by side like this the main difference to easily pick out is the extra length of barrel between the 14" and 15". (Counting the number of railing squares between the end of the barrel and the wave deflector.)