Having had a flat out in the wild, I would never drive without a spareI drive long distances and have to be at certain places at definite dates/times so I if I get a flat I don't want to be slowed down by a donut.
I looked at car-parts.com for an salvage iM OEM wheel and will call some places this week for a price.
Not sure about Toyota, but that most certainly is not the case with VW or Audi. No full size wheel fits in the spare wells in those. I've tried. If it fits diameter wise, it's far too wide. Maybe Toyota is different but in my experience as an Audi tech, I have yet to be able to do this since 2007.
For a spare you could even get a 15x6 steel wheel and a 195/65R15 for a spare. It's a lot better choice then a donut spare and it would fit in the well better since its not as wide.On eBay and car-part.com the OEM 4261112D10 wheel costs around $100 pickup to $100+$40 ship, respectfully. But who needs the OEM wheel for a spare when a regular rim would do fine. Do you know where I can buy a regular 17"x7" rim?