You were quite close actually.
Vittorio Emmanuelle, Italian Battlecruiser laid down 1926
Displacement:
18,988 t light; 20,076 t standard; 22,246 t normal; 23,893 t full load
Loading submergence 1,052 tons/feet
Dimensions:
656.17 ft x 86.94 ft x 26.25 ft (normal load)
200.00 m x 26.50 m x 8.00 m
Armament:
8 - 12.00" / 305 mm guns (4 Main turrets x 2 guns, 2 superfiring turrets)
12 - 5.12" / 130 mm guns
12 - 0.78" / 20 mm guns
Weight of broadside 7,720 lbs / 3,502 kg
Armour:
Belt 9.84" / 250 mm, ends unarmoured
Belts cover 81 % of normal area
Main turrets 9.84" / 250 mm, 2nd gun shields 0.79" / 20 mm
Armour deck 3.15" / 80 mm, Conning tower 2.76" / 70 mm
Machinery:
Oil fired boilers, steam turbines,
Geared drive, 4 shafts, 100,000 shp / 74,600 Kw = 29.47 kts
Range 5,000nm at 20.00 kts
Complement:
910 - 1,184
Cost:
£6.644 million / $26.577 million
Distribution of weights at normal displacement:
Armament: 965 tons, 4.3 %
Armour: 5,822 tons, 26.2 %
Belts: 1,609 tons, 7.2 %, Armament: 2,022 tons, 9.1 %, Armour Deck: 2,145 tons, 9.6 %
Conning Tower: 47 tons, 0.2 %, Torpedo bulkhead: 0 tons, 0.0 %
Machinery: 3,201 tons, 14.4 %
Hull, fittings & equipment: 8,950 tons, 40.2 %
Fuel, ammunition & stores: 3,258 tons, 14.6 %
Miscellaneous weights: 50 tons, 0.2 %
Metacentric height 4.9
Remarks:
Hull space for machinery, storage & compartmentation is excellent
Room for accommodation & workspaces is excellent
Estimated overall survivability and seakeeping ability:
Relative margin of stability: 1.11
Shellfire needed to sink: 28,383 lbs / 12,875 Kg = 32.9 x 12.0 " / 305 mm shells
(Approx weight of penetrating shell hits needed to sink ship excluding critical hits)
Torpedoes needed to sink: 3.0
(Approx number of typical torpedo hits needed to sink ship)
Relative steadiness as gun platform: 53 %
(Average = 50 %)
Relative rocking effect from firing to beam: 0.49
Relative quality as seaboat: 1.05
Hull form characteristics:
Block coefficient: 0.520
Sharpness coefficient: 0.37
Hull speed coefficient 'M': 7.14
'Natural speed' for length: 25.62 kts
Power going to wave formation at top speed: 54 %
Trim: 50
(Maximise stabilty/flotation = 0, Maximise steadiness/seakeeping = 100)
Estimated hull characteristics & strength:
Underwater volume absorbed by magazines and engineering spaces: 80.9 %
Relative accommodation and working space: 156.7 %
(Average = 100%)
Displacement factor: 111 %
(Displacement relative to loading factors)
Relative cross-sectional hull strength: 0.97
(Structure weight / hull surface area: 164 lbs / square foot or 799 Kg / square metre)
Relative longitudinal hull strength: 1.34
(for 20.34 ft / 6.20 m average freeboard, freeboard adjustment 2.57 ft)
Relative composite hull strength: 1.00