If you are talking about modern as in Afghanistan, the closest you will find are US. They aren't going to be perfect, but once you paint the CADPAT, it will be close enough.
Company B make a LAV, but it's not a Canadian one as its missing the 25mm turret. I believe they also make a G-wagen...
For the Leopard IIA6 ( right for Afghanistan) you will have to get a plastic kit.
If someone made modern Canadian plastics, I would be floored...