I think they are considered invasive in Canada, so you won't easily find a source for them. I would look into different roaches or perhaps worm or cricket options if possible, since those might be easier to source.
Best I have been able to find is the Probugs Eco-Fresh Dubia - they are freshly preserved and while not suitable as a staple they have been handy to have as a backup. Northern Gecko sell them. There’s also a decent aquatic/reptile store i found downtown Vancouver sells them in single packs (5 roaches) if you want to give them a try.
Sir Henry the dragon
Looking for his dragon girl
Ventures out in to the wide world
His hopes are up but as you can see
There is no dragon girl for Sir Henry
A light bulb goes off and he takes mom aside
Could you perchance get me a mail order bride ?