What you have to do to get any kind of airsoft; get age-verified, and contact one of the Canadian Retailers. See if they have something cheap that fits your needs. If not, sorry.
What you really have to do even if you're in the middle of nowhere, is follow the advice given here; get the proper permits anyway. Airsoft are still considered Replicas at the very least and that means paperwork.
Not advising the authorities, specially these days, is asking for the kind of attention you cant afford.
Your choice entirely.