Jared you don't have to wait for the solonoid, a set of jumper leads or one of those jump starter pack is all you need to get it fired up. Once the motor is running you can disconnect the leads, battery is only needed for starting. The threads are important because even though they don't take a lot of load they are needed to keep the hub tight on the taper, this is why you have one wheel flogged out, it was not held tight on the taper and was relying on the keyway to hold it and as it rocks back and forth, this is what causes the damage. You may need to get a die nut to clean the threads up again.
