I spoke with Alan last night and sadly he said it was a peice written for Nick Childs and Mark Burley and was given to them both as a present as both were former players with the band.
So there should only be two copies in existance. However Alan is aware that some of the other peices he has done as specials have been copied over the years. ( eg McArthur Park written for Grimethorpe). So he says good luck in finding a copy like this as he gave away the originals.