In regard to Walmart having the Nanco N800 tires:

I placed an online order for store pickup on 1/12/2022. I received an order confirmation and then on 1/13/2022, about 9 hours after the order, received an e-mail saying the order is delayed. Today I did the online chat with Walmart about it and they could not tell me when the order might be filled. So, it looks like their website may have been wrong on that occasion and they might not have the Nanco N800s. I decided to leave the order open for a little while to see what happens but not hopeful.