Having just had a quick look at the the initial newshot requirements doc you referenced ,UK Chinooks and for that matter Merlin have most (if not all) of that kit in some shape or form....its one thing I noitced, we might not have the numbers of platforms in the UK but what we have can do most of the roles ....saw that during op granby ...UK a/c all had GPS ..the Americans didnt and then later on if you look at Apache all our aircraft had Longbow ...not so the Americans and Dutch ..plus arguably better donkeys but that a whole different debate.
As for in service support now.....π€