Last summer and into fall we had the White Lava being sold at Lowe's here, and in other parts of the country as well. I know one fellow on the Aroids forum that (I'm pretty sure) got his at Lowe's in Massachusetts. That's getting close to the Canadian border.
Any chance you can call the closest Lowe's store to you, and if they have them, then drive down with your sterile peat, repot the plant and take it home yourself? That would be the most inexpensive and uncomplicated way to go, I would think.
Barring that, obtaining a pup in the fall and having it shipped bare-root might also work.