Winter Tires and wheel for my 2012 Yaris SE

[etherdude]

I'd like to keep the factory aluminum wheels and tires (195/50-16) together and in good condition through our tough winters up here in New England. Thus, I'd like to purchase a complete replacement set of winter tires and steelie wheels in a minus one (185/60-15) size.

Tire Rack claims it does not have a steel wheel for the Yaris (though this would be a stock rim) and wants to sell me an aluminum wheel in their preferred winter tire package. Further, I know I need TPMS sensors, but it appears they are not included in the price quote...

Questions:

1. What do you guys recommend in winter tires/wheels?
2. Source for stock steel wheels?
3. What should a reasonable price be for the TPMS sensors for 4 wheels?

Thanks in advance for any help ytou can give me.

Doug Ruby
Massachusetts