Anyone know who makes them? Gator or Anvil were my first guess but they seem quite different.
The Moog One ATA case is discontinued so I thought I’d go to the manufacturing source
You can order custom cases from places like this. Not sure who Moog used for the original.
https://www.roadcases.com/
Back when I was on the road, this company made ALL my cases. They were built like tanks.
These do look very similar, where you saying these as a suggestion or do you know they make the Moog cases?
They look great, prices reasonable?
The Nashville Case company was quite reasonable back when I needed road cases, but that was 30 years ago 
But they have an excellent reputation, I’d go online and get a quote. You’ll prob have to supply dimensions, but contact them and see. They may have already done a case for someone.
Then, compare to the other sources. Good luck!
As a long time customer of Anvil ATA cases and an owner of the Moog “ATA” case for the Taurus III, I can confirm that the Moog cases are NOT “ATA” like the Anvil cases.