OK, so I have been experimenting with a small CL

I have opted for a small CL rather than a large DL type. I have removed the torpedo tubes and added a small amount of side and deck armor. I have been struggling with the correct dimensions, as I would have liked a lower displacement. The dimensions that I have settled on for now are 439ft x 44ft x 13.8ft. The coefficients are the same: Cp=0.66 and Cm=0.82. The power is 72,000 SHP. That is good for 34 knots at the normal displacement of 4,116 tons. The speed at deep load is 31.2 knots. The range at 15 knots at normal load is 4308nm and the range at 15 knots and a deep load displacement of 5,261 tons. The deep draft is 17.3ft. The metacentric height at normal displacement is 2.76ft and at deep load is 4.57ft.