[Perfectlap]

Get a set of beater wheels in a smaller size and mount the Blizzaks.
I have dedicated winter wheels on 18" tires and I'm not sure I would want to go bigger than that. Ideally you want as narrow a tire as possible during winter.

Also, winter tires are primarily for the bite over ice which you experience all winter long, snow is not the main purpose of a winter tire.

All season tires do not address the bite issue over ice much better than a summer tire. And during summer I find the compromise unacceptable, it numbs the steering.
But if you live in an area where seasons change frequently back and forth AS is probably the better option.