Re 717 availability, aren't the former Airtran aircraft becoming available following the merger with Southwest? Thought I had read somewhere that Southwest had decided not to continue operations with the 717 as it conflicted with their business model of only using 737.
All the AirTran 717's are going on lease to Delta.
Delta Air Lines to Snatch Up AirTran's Entire Boeing 717 Fleet at NYCAviation