Even in the US G&G guns are pretty expensive.
I got the KA M4 at the end of last summer for $300. It is an ok gun. The externals don't even come close to my G&G MAX CQBR which I think I got for in the high $500s. The G&G MAX was my first gun and I don't regret the higher price. It has performed well and the exterior has held up. The KA hasn't been gamed yet but the finish on it is really poor in comparison and is already wearing off in some spots from handling.
If you aren't in a hurry, I would wait to see where prices go. Hopefully they keep the MAX line in Canada.