JDW:
Your figures are still wrong, but at least they are in the ballpark. I forgot to mention, the engines on the B787 will be a lot heavier than the ones on the B767.
One thing you failed to correct is your statement in your earlier post that the B787 won't burn less fuel per seat than the A380. Based on your new calculations, the previous statement becomes incorrect.
Your length argument that the B787-8 will hold fewer LD-3s than the A330-200 is wrong. For example, the B747-400ER is longer than the A340-300 but it has about the same cargo volume. The A330-200 doesn't need all the fuel capacity of its huge fuel tank. So, there is some wasted space there already. Another reason why you can't just compare the lengths directly is Boeing's fuselage doesn't taper as much as Airbus' fuselage.