[quote=@Dogematix]
Quick question: Do we have to pay the ticket price for our leader character as well as crew members or are they considered as having already paid? 
[/quote]

You have to pay the ticket for everyone in your initial group. If your group starts with three people, you pay 750. Future crew members will not have to pay a ticket, and instead will arrive on Ember on their own looking for work, and join the various factions.