I am completing mine this weekend, so long as the rest of my electrical gear arrives on time.
Using a Teco L510 110v-220v 3ph VFD and a 3400rpm 1hp motor, 2” pulley on the motor to the largest step on the spindle pulley. May need to add the third step pulley back in if I don’t have enough torque at low speed (hoping I do, we will see). Will post pics and an update on function once completed it you’re still interested