Took the parts to the machinist today. May end up modifying the motor shaft rather than trying to incorporate the existing splined pump shaft into the coupler design.
The machinist hemmed and hawed about the pump shaft until I suggested we could change the motor shaft.
So maybe next week something will happen... One thing I know will happen is the total $ investment in the project will probably have increased by about 30-40% by the time we get out of there
