Hi to all that have commented. Thank you all for the kind comments.
At this time, I don't expect to make the parts list and code available, as my son is considering marketing a retrofit kit, as that dovetails nicely into his machine control retrofit business.
The removal of the locking handle has not caused snipe issues, as the stepper motor provides holding torque while idle. I'm not sure what will happen when I run heavier timbers, and may need to return the locking handle. I removed it to prevent attempting to move the table with it locked which would cause missed steps.