Preventing Portable Solar Kit from growing legs

Now that I have the Renogy suitcase 100W kit, I think I may just use 1/4" aircraft cable and attach with pad lock thru the panel handle (it's very sec purely attached) and somewhere on the MH like the step or bumper. I know it can be cut thru with cable cutters, but at least it will stop a casual walker by from lifting it. Can also use my Harbor Freight driveway alarm motion detector. Once that starts they won't be sticking around.