I have been working on a design for this very holder. Plus I will offer them in different sized bores so you don't have to bush down from 1-1/2 or 1-1/4.
The old green Mori's never die, they just keep going and going.
Any interest? I have made the drawings only so far. But with work being slow I might have the time to machine it into reality. It's a killer design. Very rigid, no welds or foolishness.