Thanks. The Book Depository are still saying it's unobtainable, and the only copies on ABE are American with expensive shipping prices and long delays in delivery.

Against my better judgement, I've ordered through Amazon UK, which is notorious for the way it mistreats its workers. Still, they're opening an Amazon warehouse near to me in the near future and I belong to Unite's retired members branch. Which means I'm going to be very well placed to help out if the Amazon workers decide to get unionised.