I see you are from Canada. I've bought 3 sets of rims of ebay. No problems. I live in Canada too, and the price of tires and rims up here are insane.
My only advice is if you are getting them from the US and live anywher near the border, have them shipped to a UPS Supply Chain Solutions on the US side, or something similar, and go pick them up there. I did that twice, and paid very little for shipping. The 3rd time, I figured I'd save the gas, and have them shipped to my house ( about 45 minutes north of the border). Not only was shipping double, UPS charged me another $100 when they got to the door for a border brokerage fee.
PS. Where abouts are you from in the Great White North? I'm in Taber, Alberta. About 2 hours south of Calgary.