In that price range, you are probably really looking at
ASR and
ludespeed. ASR is having a GB on a nice intercooled kit for $2800. The thread is
here.
The ASR guy says he will fulfill very shortly after that GB is closed. If you wanted to buy a kit outside of that buy, you could get it more quickly, I think.
Ludespeed is completing a GB. They really aren't doing any new Subaru kits until that is complete, but I suspect that after it is complete, they'll do another.
And, as this gets more popular, I would bet that other folks get into the act. Just a hunch.