The article mentions 76 cm width for the reactor they're designing, and oil wells can be up to a meter wide[0], so that price estimate would probably be similar

The article mentions 76 cm width for the reactor they're designing, and oil wells can be up to a meter wide[0], so that price estimate would probably be similar then. [0]: https://en.wikipedia.org/wiki/Oil_well#Drilling https://en.wikipedia.org/wiki/Oil_well#Drilling