There are a lot of these available quite close to you. You just need to know what you want - learn the codes so you'll get the correct stuff.
In Sweden (just one channel to try):
http://www.laga.se/visa-produkter?Pa...ode=4332&Tab=2
That's just 03-06 Imprezas. Not all are equal, though.
There are also several breakers in the UK who only do Subaru.
/T