I am ex-RAF and moved over here shortly after PVRing.
I had the same thoughts as yourself.But my intention was to become a civi pilot and if it did not work out join up with the RCAF.
As above you will need to become a Citizen.You will have to be "landed" here for I beleave 3 years before you can get that status.
From what I have seen and the people I have spoken with the RCAF is in a far worse mess than the RAF. They do have a pilot retention problem but for very good reasons.
Personaly the thing that capped it for me was that I would have to become fluent in Frog before getting back in the seat.Visions of my school french master are far worse than Cranditz.
Outside of that its bloody great over here.Ref my other posts on the subject of Civi flying here.
good luck