On the topic of Referees.
A referee is there to confirm the decision not make the decision.
Your referees are valuable to you.
Only disclose them at preferred candidate stage.
If your CV stacks up and given it's a small industry a recruiter should be able to work out who you will name as a referee without you actually naming them. e.g. if you worked for xxx air charter, it is likely that mr smith the chief pilot of the time will be a referee.
Referees that are rung up and harrassed frequently by a junior HR person, with nothing better to do, will soon desert you.