I am considering building up a batch of these.. half a dozen or so.
Problem is, they would not be cheap.. probably around $65/ea. The machinework on the first one was done for me on a friendly basis, but additional machine shop time would have to be scheduled at $45/hr.
If interest is strong, I'll shop the drawing around to a couple of other machinists I know, with CNC lathes, etc. The original was all manual work.
And of course, this tool is aluminum.. I assume the orginal is steel.