Hi, I am considering buying a set of four Blizzak ws-50 snow tires and mille miglia alloy rims for $450...Is that a good deal? I think the tires can be had (new) for about $100 each right? The tires were allegedly used for less than a season and seem to have good tread. What do you guys think? Should I buy rims with the tires or use the ones I have? I have a '95 530i 225/60/15 I believe.