as I Comair guy who is JFK based (until sept. 1st). I'll I can say is good luck, it certainly isn't an easy place to be based. That said you will make great friends, have some great expires, and learn how awesome Jetblue is, and how to make sure jumpseaters get on (you and your fellow pilots will really, really, really not want to get stuck in JFK.)
Crashpads are anywhere from 165ish (for hot bunks 8 people per room) to 275 (for muy fancy)
If anyone needs more info, please feel to PM