Highly modifying an existing block = MTM.
Only drafting a pattern for you = Bespoke.
HBone: don't like the pattern.
Cutler: You sure 2K is what they charge? I believe Cutler is bespoke, not MTM, and one of those that charges 6K and above.
Zegna is indeed about 3K... for a basic suit.
I was surprised to see recently that John Cutler does have a much cheaper option, which I assume is MTM.
It's called something like "London Style by Cutler" and prices start at around $1750, if I remember the article correctly.