The "classic" version of the GB/CB/1905 design

I experimented with the machinery date to achieve the needed strength, while not ballooning the displacement, excessively. The ship is the usual that goes with the photo:

The ship is nominally 25,000 tons, with 4-12in/45 and 9-6in QF guns. the armour basis is 4in. This is the Springsharp report:

GB/CB/1905 classic version, Great Britain Battlecruiser laid down 1905 (Engine 1908)

Displacement:
 24,781 t light; 25,580 t standard; 28,500 t normal; 30,836 t full load

Dimensions: Length overall / water x beam x draught
 770.00 ft / 770.00 ft x 85.00 ft x 27.00 ft (normal load)
 234.70 m / 234.70 m x 25.91 m  x 8.23 m

Armament:
      4 - 12.00" / 305 mm guns (2x2 guns), 864.00lbs / 391.90kg shells, 1905 Model
   Breech loading guns in turrets (on barbettes)
   on centreline ends, evenly spread
      8 - 6.00" / 152 mm guns in single mounts, 108.00lbs / 48.99kg shells, 1905 Model
   Quick firing guns in deck mounts with hoists
   on side, all amidships
      1 - 6.00" / 152 mm guns in single mounts, 108.00lbs / 48.99kg shells, 1905 Model
   Quick firing gun in a deck mount with hoist
   on centreline aft, 1 raised gun
 Weight of broadside 4,428 lbs / 2,009 kg
 Shells per gun, main battery: 90

Armour:
   - Belts:  Width (max) Length (avg)  Height (avg)
 Main: 4.00" / 102 mm 465.00 ft / 141.73 m 8.00 ft / 2.44 m
 Ends: Unarmoured
 Upper: 4.00" / 102 mm 345.00 ft / 105.16 m 8.00 ft / 2.44 m
   Main Belt covers 93 % of normal length
   Main belt does not fully cover magazines and engineering spaces

   - Torpedo Bulkhead:
  2.00" / 51 mm 550.00 ft / 167.64 m 27.00 ft / 8.23 m

   - Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
 Main: 8.00" / 203 mm 5.00" / 127 mm  7.00" / 178 mm
 2nd: 4.00" / 102 mm 4.00" / 102 mm  4.00" / 102 mm
 3rd: 4.00" / 102 mm 4.00" / 102 mm  4.00" / 102 mm

   - Armour deck: 2.00" / 51 mm, Conning tower: 8.00" / 203 mm

Machinery:
 Oil fired boilers, steam turbines, 
 Direct drive, 4 shafts, 171,389 shp / 127,856 Kw = 33.00 kts
 Range 6,500nm at 15.00 kts
 Bunker at max displacement = 5,255 tons

Complement:
 1,096 - 1,425

Cost:
 £2.544 million / $10.176 million

Distribution of weights at normal displacement:
 Armament: 554 tons, 1.9 %
 Armour: 4,962 tons, 17.4 %
    - Belts: 1,132 tons, 4.0 %
    - Torpedo bulkhead: 1,099 tons, 3.9 %
    - Armament: 857 tons, 3.0 %
    - Armour Deck: 1,713 tons, 6.0 %
    - Conning Tower: 161 tons, 0.6 %
 Machinery: 8,656 tons, 30.4 %
 Hull, fittings & equipment: 10,609 tons, 37.2 %
 Fuel, ammunition & stores: 3,719 tons, 13.0 %
 Miscellaneous weights: 0 tons, 0.0 %

Overall survivability and seakeeping ability:
 Survivability (Non-critical penetrating hits needed to sink ship):
   29,079 lbs / 13,190 Kg = 33.7 x 12.0 " / 305 mm shells or 3.3 torpedoes
 Stability (Unstable if below 1.00): 1.32
 Metacentric height 6.4 ft / 1.9 m
 Roll period: 14.1 seconds
 Steadiness - As gun platform (Average = 50 %): 66 %
   - Recoil effect (Restricted arc if above 1.00): 0.35
 Seaboat quality  (Average = 1.00): 1.31

Hull form characteristics:
 Hull has rise forward of midbreak
 Block coefficient: 0.564
 Length to Beam Ratio: 9.06 : 1
 'Natural speed' for length: 27.75 kts
 Power going to wave formation at top speed: 55 %
 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:  34.00 ft / 10.36 m
    - Forecastle (20 %): 29.00 ft / 8.84 m
    - Mid (73 %):  29.00 ft / 8.84 m (21.00 ft / 6.40 m aft of break)
    - Quarterdeck (15 %): 21.00 ft / 6.40 m
    - Stern:  21.00 ft / 6.40 m
    - Average freeboard: 27.24 ft / 8.30 m

Ship space, strength and comments:
 Space - Hull below water (magazines/engines, low = better): 148.0 %
  - Above water (accommodation/working, high = better): 221.5 %
 Waterplane Area: 46,301 Square feet or 4,302 Square metres
 Displacement factor (Displacement / loading): 107 %
 Structure weight / hull surface area: 148 lbs/sq ft or 723 Kg/sq metre
 Hull strength (Relative):
  - Cross-sectional: 1.00
  - Longitudinal: 1.37
  - Overall: 1.04
 Hull space for machinery, storage, compartmentation is cramped
 Room for accommodation and workspaces is excellent
 Good seaboat, rides out heavy weather easily