Subaru Calgary is always a bad experience - not surprising to hear they are unresponsive and boning you on the quote. I'll never forget when they didn't let me test drive an Sti there "because it had a turbo charger" but they let me drive a WRX
How much is the free block worth? Might it still be cheaper to go completely though a 3rd party or trusted 'backyard' mechanic and not pay shop rates?
If you could get $14K+ for it from some idiot on Kijiji like the example posted above though, that seems like a no-brainer to at least try.