All of Bodine’s potentiometers are one-turn pots. If you need any other type (i.e. multiple-turn pot), it must be sourced separately.
Technically, the answer is yes. However, if the continuous output current on your control is less than that of the motor’s nameplate rated current, you will run into current limit and will not get the full nameplate rated torque from the motor.
No, brushless DC motors cannot be run with an AC VFD. The brushless motor needs electronic commutation, and this will not be provided correctly from a VFD. The motor design will not work with a VFD. It may be possible, through some experimenting, to get the motor to turn, but there will be zero torque out.