Thu11s has done a few space fighters, you may want to check
Feral Yards to see if he has anything that apeals to you.
If your machine can handle it, you can replace the fighter models with any ship model. If you look close, you see that the fighters
here, are actually
these. There's nothing you need to do to shrink the ships to fighter size, as the models.siz feature of the game does that for you.
If you really hot for air based fighters, someone here modeled the Decepticons from the Transformers a while back. Those should fit the bill nicely.