there are is one that might...
Northbound Leather-they do a lot of in house designs, but they would probably be willing to carry your stuff.
Northbound Leather is one, located at Yonge and Bloor( the center of down town) northboundleather.com
i make a lot of my own stuff and so am not to familiar with the fetish fashion boutiques in the city. you could try contacting a group called "subspace" they run a monthly fetish party. for their Halloween party this year they had a fashion show. they have pictures of it posted on their facebook group. [link]
i hope that this info helps you get your stuff to Toronto, because its great and should be here.