Cutting a shape to create another shape

The finished GIZMO has grip handles at both bottom corners. To create these we are going to start with the Body shape and then cutt off a section to use for the grips.

We are going to start by making a copy of the Body shape.
Make sure the Body shape is selected if it is not already.
Choose Edit > Copy and then Edit > Paste.
This creates a copy of the Body shape. Notice there is now a new layer in the Layers Panel.
Click on the 'eye' to hide the bottom Body layer.
Rename the top copy of the Body shape to Grip Path.
Select the Grip Path layer by clicking on it. This also selects the shape in the document.
In the Property Inspector remove all Live Effects by selecting them in turn and clicking the - (minus) button.
In the Property Inspector remove the fill colour from the Grip Path and remove the stroke colour also.

All you are left with is the path that defines the shape.