About 10 days. One delay was because I paid with a Euro transfer from an old Deutsche Bank account I had while being an ex-pat. I thought that would make things quicker and save me a few bucks on currency conversion fees, but it took a good 3-4 business days just for them to align my payment with the order.
So after they acknowledged my payment, it was about a week. So other than the additional shipping and tariff costs, it was a good shopping experience.I did hear from someone on one of the FB NT groups that those seats were available in Canada as well. So you might Google around a bit in case that's significantly cheaper.