Don't use the tire sealant....EVER! It will ruin your TPM sensors. Go out and buy a tire plug kit for a few bucks from the auto parts store, and your car should already have a compressor in the trunk.

No idea about wheels, I live in Detroit, we are the masters of pothole cultivation. The stock wheels are hard to beat for strength, that's why I haven't replaced mine. I've also had great luck with the Goodyear F1 A/S tires......got me through 2 winters trouble free.