Bridgestone Blizzak WS-50 are the only passenger winter tires in that size at the moment. Probably fine in terms of suiting her driving, too.
Wheels should be easier to find. Are steel wheels what she wants, or does she want aluminum? Morty should be able to help point you in the right direction. Many tire shops will also sell "take off" wheels, and likely, the Odyssey will have the same or similar sized wheels to other Hondas.