The reality is that 99% of the G/K43 rifles that change hands in Canada are East German VOPO rifles, which are basically RC guns. Most of these rifles are advertised at $2500+, often with condition issues like re-shaped pistol grips or butt pads added by owners in the 60's and 70's. MANY also have been smoothed and re-blued to minimize the rough casting manufactured areas on the receiver. Still more have restored rear sight assemblies since it was popular in the post-war years to mill the rear sight base off and add either a sporting tangent sight or a commercial scope mount.
I rarely see any of these rifles selling at the asking price. In the few cases where I have knowledge of the transaction, the sellers end up accepting lesser offers in the $1500-2000 range.
Original, all matching bring backs are a totally different story. Get ready to pay over $4000 if you can even find one.