As for the faults you should get texts from the car, at least for a few years. Looking up the price of the cables it does sound like a decent deal. 25 foot cables from leviton is $174. Input cable is just a range plug or hard wired.
Although we just have the focus ev and have an energi on order the wife and I both leave the door open all the time. I've found it is because we unplug with both hands to be careful when putting the charger up. Just had a guy honking at us in the rain last night all freaking out. I told her I'm just going to take the cover off. Detaches at the rotating cylinder for different color cars.