You might want to contact Rob Simmons. Check out his shots of JetBlue at JFK--he's got a great one of argyle-tail N504JB, I think it is, taxiing past the TWA terminal. That's one of the crispest and best-lit--almost no shadow--shots I've ever seen. Good work Rob.
Because the JetBlue terminal (T6) faces north, you'll probably need to shoot in morning to early afternoon to get good shots, looking north to south across the runway from the cargo area. I haven't tried to shoot from the cargo area and don't know what the access or views are like, though.
Just my suggestion,
Need a new airline paint scheme? Better call Saul! (Bass that is)