Does anyone know how easy it would be to remove the roadster cord and attach a J1772 cord to the MC240? Is it just a matter of opening it up and swapping the cable? I'd like to plug it into the NEMA 14-50 outlet at work and charge either my Leaf, Roadster, or co-worker's Volt. When not in use it would hang on a hook inside a locked door. The company I work for won't let us install a [semi-]permanent charger, even though it would just mean a few screws in the wall. Other questions: * Is it suitable to charge in adverse weather? Would I need to seal the box around the new J1772 cord? * What amp rating would be best for the J1772 cord at 25' long? Thanks!