Well, speaking from what the "official line" from Disney is regarding non-UK Resort Pkg. tickets,
and what REALLY happens at WDW (which is, guests are told in advance that they CAN'T activate early, but once they arrive at WDW, they CAN.)
It might (MIGHT) very well be possible to activate the UK package tickets up to three days before check-in.
Has anyone reading this tried to do so?
Also, is it possible to book "room only" from UK and buy the 14 (or 24) day tickets separately?
(I know that it IS possible, I just don't know if the cost significantly different, one way or the other.)