Interesting how often real life is imitated by our own imaginations. I was already nearly finished the Ebro (below) when Smurf gave the details of the Lillicrap designs.
Mine ended up 684.5 feet by 88 feet draught a bit deeper at 26 feet. Armament is 8x12" (4x2), 12x4.5" (6x2), 16x2pd (4x4), 28x0.5"mg. 3 Aircraft, and a crew of approx. 1100. Machinery at 4 shaft geared turbines, 90,000shp for 30 knots on 31,000 full load displacement (25,000 tons standard). Armour was a modest 8" belt and 4" deck.