How much effort are you going to in order to get $200 for a set of OEM rims? That's all they fetch state side.
I think if you live in the GTA and rarely head north during snow season winter tires are over kill. I've driven through the worst snow on record in that region with A/S tires on a FWD Honda sedan.
Over those years I've never had any rims negatively affected by the salt/rocks.