You will love it.
I couldn't find anyone in-country who stocks this. What's wrong with ordering from Brownells? $110 USD, $30-ish shipping (you can add in up to $500 of non- major components at same charge), crappy exchange rate, possibility of paying tax at the border… I betcha still a hundred bucks less than a local store would have to charge for it!
The 22/45 apparently does not take the replacement sear spring, but all the other bits will fit.