Hi there! I live in Canada too
Both are good, sturdy cages. Both are the same dimensions.
The main difference is the bars.
CN Bars: the bars are more horizontal and have less space in between them, which is good for smaller rodents or baby chins. The bars are a little more flimsy in comparison to the FN and you may have to bend them to fit the nozzle of your chin's water bottle.
FN Bars: the bars are more vertical and are spaced wider apart, which is perfectly fine for chinchillas, but maybe not a good idea if your breeding for baby chins (babies might fit through).
I have the Ferret Nation.
I did compare prices for it.
Petsmart: Canada doesn't carry them, only the US stores.
Pet Culture (Pets Unlimited): $349.99
Pet Valu: 299.99
If you buy online, if seen them for less on Amazon and a couple other websites.
Good luck with your search!