You wont have any luck for less than 200, at all.
In most cases you're looking well over 500 - 700 dollars for a decent M14 and even then... The best ones available are TM.
Don't cheap out even on your first gun, Airsoft is very expensive in canada and spending the dough on a quality gun to start out with is seriously beneficial.
Arrange to get age verified with a local rep here and get access to the classifieds, you have to be 18 or older to be verified