A large, but more moderate sized German battleship

As I had a sparcer specification, I decided to go with what I would presently choose, except for the bare dimensions from 1999. They were 75,000 tons, 1002ft x 132ft x 36ft, Cp=0.58, Cm=0.95. The rest, I filled in like I would do now. I thought that 18in guns would be appropriate for a 75,000 ton ships. This is the Springsharp report:

Ger/BB/1941, Germany Battleship laid down 1941

Displacement:
 68,639 t light; 70,139 t standard; 75,000 t normal; 78,889 t full load

Dimensions: Length overall / water x beam x draught
 1,005.83 ft / 1,002.00 ft x 132.00 ft x 36.00 ft (normal load)
 306.58 m / 305.41 m x 40.23 m  x 10.97 m

Armament:
      9 - 18.00" / 457 mm guns (3x3 guns), 2,916.00lbs / 1,322.68kg shells, 1941 Model
   Breech loading guns in turrets (on barbettes)
   on centreline ends, majority forward, 1 raised mount - superfiring
      12 - 6.00" / 152 mm guns (6x2 guns), 108.00lbs / 48.99kg shells, 1941 Model
   Quick firing guns in turrets (on barbettes)
   on side, all amidships
      16 - 4.00" / 102 mm guns (8x2 guns), 32.00lbs / 14.51kg shells, 1941 Model
   Anti-aircraft guns in turrets (on barbettes)
   on side, evenly spread, all raised mounts
      56 - 1.57" / 40.0 mm guns (14x4 guns), 1.95lbs / 0.89kg shells, 1941 Model
   Anti-aircraft guns in deck mounts 
   on side ends, evenly spread, 8 raised mounts - superfiring
      24 - 0.79" / 20.0 mm guns in single mounts, 0.24lbs / 0.11kg shells, 1941 Model
   Anti-aircraft guns in deck mounts 
   on side, evenly spread, 16 raised mounts
 Weight of broadside 28,167 lbs / 12,776 kg
 Shells per gun, main battery: 0

Armour:
   - Belts:  Width (max) Length (avg)  Height (avg)
 Main: 17.0" / 432 mm 690.00 ft / 210.31 m 17.00 ft / 5.18 m
 Ends: Unarmoured
   Main Belt covers 106 % of normal length

   - Torpedo Bulkhead:
  3.00" / 76 mm 690.00 ft / 210.31 m 35.00 ft / 10.67 m

   - Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
 Main: 17.0" / 432 mm 10.0" / 254 mm  17.0" / 432 mm
 2nd: 6.00" / 152 mm 6.00" / 152 mm  6.00" / 152 mm
 3rd: 1.00" / 25 mm 1.00" / 25 mm  1.00" / 25 mm
 4th: 1.00" / 25 mm       -         -
 5th: 1.00" / 25 mm       -         -

   - Armour deck: 7.00" / 178 mm, Conning tower: 17.00" / 432 mm

Machinery:
 Oil fired boilers, steam turbines, 
 Geared drive, 4 shafts, 226,190 shp / 168,738 Kw = 31.00 kts
 Range 8,000nm at 18.00 kts
 Bunker at max displacement = 8,750 tons

Complement:
 2,265 - 2,945

Cost:
 £38.307 million / $153.229 million

Distribution of weights at normal displacement:
 Armament: 3,521 tons, 4.7 %
 Armour: 29,488 tons, 39.3 %
    - Belts: 8,446 tons, 11.3 %
    - Torpedo bulkhead: 2,681 tons, 3.6 %
    - Armament: 5,741 tons, 7.7 %
    - Armour Deck: 11,968 tons, 16.0 %
    - Conning Tower: 651 tons, 0.9 %
 Machinery: 5,978 tons, 8.0 %
 Hull, fittings & equipment: 29,653 tons, 39.5 %
 Fuel, ammunition & stores: 6,361 tons, 8.5 %
 Miscellaneous weights: 0 tons, 0.0 %

Overall survivability and seakeeping ability:
 Survivability (Non-critical penetrating hits needed to sink ship):
   126,395 lbs / 57,332 Kg = 43.3 x 18.0 " / 457 mm shells or 24.4 torpedoes
 Stability (Unstable if below 1.00): 1.18
 Metacentric height 10.4 ft / 3.2 m
 Roll period: 17.2 seconds
 Steadiness - As gun platform (Average = 50 %): 62 %
   - Recoil effect (Restricted arc if above 1.00): 0.44
 Seaboat quality  (Average = 1.00): 1.24

Hull form characteristics:
 Hull has a flush deck
 Block coefficient: 0.551
 Length to Beam Ratio: 7.59 : 1
 'Natural speed' for length: 31.65 kts
 Power going to wave formation at top speed: 46 %
 Trim (Max stability = 0, Max steadiness = 100): 50
 Bow angle (Positive = bow angles forward): 3.00 degrees
 Stern overhang: 2.00 ft / 0.61 m
 Freeboard (% = measuring location as a percentage of overall length):
    - Stem:  35.00 ft / 10.67 m
    - Forecastle (20 %): 24.00 ft / 7.32 m
    - Mid (50 %):  24.00 ft / 7.32 m
    - Quarterdeck (15 %): 24.00 ft / 7.32 m
    - Stern:  24.00 ft / 7.32 m
    - Average freeboard: 24.88 ft / 7.58 m

Ship space, strength and comments:
 Space - Hull below water (magazines/engines, low = better): 70.2 %
  - Above water (accommodation/working, high = better): 186.5 %
 Waterplane Area: 92,418 Square feet or 8,586 Square metres
 Displacement factor (Displacement / loading): 108 %
 Structure weight / hull surface area: 240 lbs/sq ft or 1,173 Kg/sq metre
 Hull strength (Relative):
  - Cross-sectional: 1.00
  - Longitudinal: 1.03
  - Overall: 1.00
 Hull space for machinery, storage, compartmentation is excellent
 Room for accommodation and workspaces is excellent
 Good seaboat, rides out heavy weather easily