My attempt at an X4 design is pretty sad

The X4 was supposed to be 623ft x 83ft x 27.5ft, carry 10-12in, 8-4in, and 18-3in guns, and have an 11in belt with a 25 knot speed. This is the best that I can do, seemingly, and it is unsatisfactory, due to the size. Perhaps someone who knows Springsharp better could make it work as originally specified:

X4 Design, Great Britain Battleship laid down 1906 (Engine 1908)

Displacement:
 22,949 t light; 23,946 t standard; 26,650 t normal; 28,813 t full load

Dimensions: Length overall / water x beam x draught
 623.00 ft / 623.00 ft x 88.00 ft x 28.00 ft (normal load)
 189.89 m / 189.89 m x 26.82 m  x 8.53 m

Armament:
      10 - 12.00" / 305 mm guns (5x2 guns), 864.00lbs / 391.90kg shells, 1906 Model
   Breech loading guns in turrets (on barbettes)
   on centreline, evenly spread, all raised mounts
      8 - 4.00" / 102 mm guns in single mounts, 32.00lbs / 14.51kg shells, 1906 Model
   Quick firing guns in casemate mounts 
   on side, all amidships, all raised mounts - superfiring
      18 - 3.00" / 76.2 mm guns in single mounts, 13.50lbs / 6.12kg shells, 1906 Model
   Quick firing guns in casemate mounts 
   on side, evenly spread, all raised mounts
 Weight of broadside 9,139 lbs / 4,145 kg
 Shells per gun, main battery: 90
 3 - 18.0" / 457.2 mm submerged torpedo tubes

Armour:
   - Belts:  Width (max) Length (avg)  Height (avg)
 Main: 11.0" / 279 mm 430.00 ft / 131.06 m 8.00 ft / 2.44 m
 Ends: 5.00" / 127 mm 193.00 ft / 58.83 m 17.00 ft / 5.18 m
 Upper: 8.00" / 203 mm 430.00 ft / 131.06 m 8.00 ft / 2.44 m
   Main Belt covers 106 % of normal length

   - Torpedo Bulkhead:
  1.50" / 38 mm 430.00 ft / 131.06 m 25.00 ft / 7.62 m

   - Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
 Main: 11.0" / 279 mm 6.00" / 152 mm  10.0" / 254 mm

   - Armour deck: 2.50" / 64 mm, Conning tower: 10.00" / 254 mm

Machinery:
 Coal fired boilers, steam turbines, 
 Direct drive, 4 shafts, 61,982 shp / 46,238 Kw = 25.00 kts
 Range 7,500nm at 12.00 kts
 Bunker at max displacement = 4,867 tons (100% coal)

Complement:
 1,042 - 1,355

Cost:
 £2.245 million / $8.980 million

Distribution of weights at normal displacement:
 Armament: 1,142 tons, 4.3 %
 Armour: 8,460 tons, 31.7 %
    - Belts: 3,401 tons, 12.8 %
    - Torpedo bulkhead: 597 tons, 2.2 %
    - Armament: 2,402 tons, 9.0 %
    - Armour Deck: 1,868 tons, 7.0 %
    - Conning Tower: 192 tons, 0.7 %
 Machinery: 3,443 tons, 12.9 %
 Hull, fittings & equipment: 9,903 tons, 37.2 %
 Fuel, ammunition & stores: 3,701 tons, 13.9 %
 Miscellaneous weights: 0 tons, 0.0 %

Overall survivability and seakeeping ability:
 Survivability (Non-critical penetrating hits needed to sink ship):
   33,389 lbs / 15,145 Kg = 38.6 x 12.0 " / 305 mm shells or 5.0 torpedoes
 Stability (Unstable if below 1.00): 1.00
 Metacentric height 4.2 ft / 1.3 m
 Roll period: 18.1 seconds
 Steadiness - As gun platform (Average = 50 %): 61 %
   - Recoil effect (Restricted arc if above 1.00): 0.81
 Seaboat quality  (Average = 1.00): 1.22

Hull form characteristics:
 Hull has rise forward of midbreak
 Block coefficient: 0.608
 Length to Beam Ratio: 7.08 : 1
 'Natural speed' for length: 24.96 kts
 Power going to wave formation at top speed: 50 %
 Trim (Max stability = 0, Max steadiness = 100): 50
 Bow angle (Positive = bow angles forward): -2.00 degrees
 Stern overhang: -2.00 ft / -0.61 m
 Freeboard (% = measuring location as a percentage of overall length):
    - Stem:  30.00 ft / 9.14 m
    - Forecastle (37 %): 23.00 ft / 7.01 m
    - Mid (67 %):  23.00 ft / 7.01 m (17.00 ft / 5.18 m aft of break)
    - Quarterdeck (15 %): 17.00 ft / 5.18 m
    - Stern:  17.00 ft / 5.18 m
    - Average freeboard: 22.06 ft / 6.72 m

Ship space, strength and comments:
 Space - Hull below water (magazines/engines, low = better): 98.2 %
  - Above water (accommodation/working, high = better): 153.2 %
 Waterplane Area: 40,384 Square feet or 3,752 Square metres
 Displacement factor (Displacement / loading): 109 %
 Structure weight / hull surface area: 170 lbs/sq ft or 828 Kg/sq metre
 Hull strength (Relative):
  - Cross-sectional: 0.96
  - Longitudinal: 1.38
  - Overall: 1.00
 Hull space for machinery, storage, compartmentation is adequate
 Room for accommodation and workspaces is excellent
 Good seaboat, rides out heavy weather easily