Thank you. I've messaged the seller.
One of the shops said that they can get one but need to confirm availability and price.
The point is that if I was on the side of the road right now, I don't know what my options would be.
Here is a thought: Can ALL mobile trucks swap tires? Would I have an option for them to bring rather plentifully available 225/70r19.5 tire and swap in onto my rim, provided the rim didn't get destroyed during the blowout?
Or, if I carried just the tire, could they swap it for me on a side of the road?
I know that's common with big rigs where you have 2 part rims, but not sure about singles.