There are sources of Miller Falls boring machines, even here in this forum.

There was someone in the guild who was trying to reproduce a "new" Miller Falls machine but I haven't seen or talked to him for a few years.

At the time I saw his prototype it was around $1000 to make it, then. I don't know if he ever continued with the idea or not.

As of right now, I don't know of any "company" trying to make them.

Jim Rogers