As long as you give it a good clean between different paints, you should be fine. I would however suggest a different airbrush for metallics if your budget allows for it, those metal particles hang around longer than a clingy ex in your airbrush.
I would love to get a few of those FJ-4 sheets, and the ANG F-84F Thunderstreak for that matter, for a good couple of years now. See the Fury finally got mentioned, if you could give a ballpark estimate of release, I would be a happy camper!