best option is to find some steel wheels to fit the front and stick snow tyres on them to match the rolling radius of your current tyres.

NO NO NO!!! Be careful - if you use just 2 snow /winter /cold weather tyres on the front then it will swap ends when braking etc. Modern winter tyres have so much more grip than ordinary "summer" tyres in cold weather /snow /ice etc - I reckon you must use all 4 tthese days.