3d scanners have come a LONG way.
This one is around a thousand dollars, but requires a powerful computer to run it.
So figure a few thousand more.
It is extremely accurate and fast though.
https://youtu.be/rORuE8Oyxd0
Just yesterday, I was at the dentist. They 3D scanned my entire jaw in real time.
When I got home, I found a used machine for 7 K on Ebay.