SRT-8 - Winter Wheels and Winter Tires

I've got the 3 season wheels and tires with the Goodyear F1's. Great tires for handling and road adhesion, but pretty useless, according to reports, in the minus 20 to minus 40 weather that we get up here in Canada for far too many months a year. I commute a long-distance and need a reliable ride and cannot afford two reliable rides, so the SRT-8 will do 4 season duty.

QUESTION
Has anyone found replacement 20" wheels or steelies for the SRT-8 that clear those enormous Brembo brakes, and/or ice tires to fit 245/45 20s?

Dante