Building an EJ22t to be stout is more expensive than a brand new EJ257 block, which has thicker main bearing supports, #5 thrust bearing, nitrided crank, and better cooling being semi closed. So the smart people aren't looking for the 2.2s anymore.
There was a guy in England buying short blocks for like $800 for his hill climb car, because he was sleeving, converting to phase 2 crank, etc., but even that was like 10 years ago.
The heads are garbage, for any performance application
What I would pay for it, would depend considerably on my intended use. But I can't imagine spending more than a couple hundred bucks. If I had a stock turbo Legacy that needed an engine, I would pay more for a complete engine.