It doesn't answer your question directly Riskygizmo but I submitted this some time ago....
The original specification called for stern thrusters too - which would have helped. However, Cunard were shocked when the three tenders were in at the price the yards were quoting. The cheapest, John Browns, was still more than Cunard could afford so in a period of three weeks from tender receipt to contract signing Dan Wallace and Tom Kameen (the men who effectively gave us QE2) deleted and altered a great many things and shaved £1.5 million from the build price. Some of the key things (and the £ savings) were:
• Stern anchor.
• The sliding roof on the Sports Deck. £27,300
• A set of stabilizers (four fins instead of six). £43,420
• One auto tensioning winch. £8,000
• Cathodic Protection. £6,600
• Two aft cranes. £32,000
• The aft MacGregor hatch and trunk. £27,000
• The aft thrust units. £46,000
• Mental Ward and Mortuary. £1,600
• Verandah Grill from funnel base. £35,000
• Fur Store. £2,000
• Breakwater. £1,000
• Six lifts. £40,500
• Two gangway handling winches. £ 1,700
• Special cruising gangways. £500
• Twin boiler casings. £3,500
• Insulation in the way of the steam pipe passage.
Major Alterations:
• The cruise launches were modified.
• The forward cranes to be Stothert & Pitt.
• The boat davits to be steel in lieu of aluminium. £69,000
• Omit the painting of aluminium behind the Linings. £12,000
• Enamel beds for crew instead of aluminium. £10,000
• The relocation of insulated cargo from aft to forward. £1,000
• The Boiler Seatings were reduced in number.
The stern anchor and morturary would be put back into the ship.
The reduction of the boilers would effectively cripple the ship until her re-engining as the system lost its redundancy.
But if the above was not done, perhaps the ship would not have been built!