Would love to see the vidoes Alphacentauri!
I believe the trip you are talking about will be on the 1st May 2012, to celebrate the 70th anniversary of the first aeromedical evacuation from YLHI, although I can't find any mention of it on the internet anywhere.
Runway has only been there since the mid 70's I believe, so prior to that flying boats did the aeromedical ops.