The phone book is loaded with schools in the GTA. So, you shouldn't have a problem finding one.
I doubt a public class will start you with weapons of their style and for sure they won't give regard to whatever rank you hold in wing chun.
Having said that, what part of Toronto are you in? How far are you willing to travel? What are you willing to pay as a fee for your kwoon use or class attendance etc?
here's a google link with those schools around the gta that have sites that have been listed in google maps for businesses.
Google link to GTA kung fu school