If there is to be an 'Edited by David Lean' boxset, and I'm not saying that there ever will be, then how about including his collaborations as editor with those remarkable filmmakers, The Archers:
One of Our Aircraft Is Missing
49th Parallel
...the latter photographed by a certain Freddie...
I don't live in the US, so region A availability doesn't impact me as it does the majority of members here.
However, I'm fully in favour of a Lean box-set or two on Blu, and think Sean's idea of 'Lean directs his Ex' is wonderful. I'd buy that in a heartbeat.
Highest respects to all involved...