I'm not sure I'd worry too much about type for transition to civi.
I left the RAF, current on Chipmunks, on to Viscounts; although perhaps previous 4 x Dart experience swayed the selection.
Approaching retirement at 55, I fought to remain on B75/76, confident that they would afford the best chance of another appointment - nothing doing on those so accepted the offer of B747. In that outfit we'd a guy who'd gone rotary, short tour on Hercs and then did well on the Jumbo.
OTOH I could be completely wrong
