I have emailed Wested re the stock Skyfall and they have confirmed that their measurements are pretty much the same as my Skyfall jacket.
However, one, the price seems to have gone up to £199 in the past few days where as the custom made is still at £210 so for an extra £10, this now looks the best option with the choice of available hides.
I did ask about the current shade of shrunken lamb to get an idea of colour (i emailed Wested the photos in this thread hope you guys don't mind) and they confirmed that the shade is now a much lighter brown than Drones jacket which for me probably won't suit.
Wested did mention that if I want a dark brown I would be best with the washed lamb but this isn't option on the custom order page so would need to confirm that this can be used.
Other than that, I would probably need to go with the dark brown lambskin but my only concern would be that the hide is quite shiny with not much character, would anybody be able to comment on this if they had used this hide previously.
Any advice would be great.