Nice work Roaring Forties, just remember that in that era accident rates were extremely high. Lots of 19 year old pilots with minimal training will do that.
Note in the Continental US there were 5533 fatal training accidents during the war.
P.S. I don't think 250 hours pilots in an ATR is unreasonable, but the selection and training of those pilots will need to be carefully managed. If the only selection requirement is willingness to pay, and the only training requirement is to meet CASA minimums it will end in tears. Here's hoping Virgin gets it right.