Here is a picture of the lift in the pit.
The arms swing out way wider than I would ever need. They come with extensions so I can make them taller but that is also pointless for my needs.
It will lift the Elky to the point the antenna will would poke the ceiling. I don't know if the roof would hit the garage door opener or the antenna hit the ceiling first and I really plan to never find out.
The lift has a mechanical safety lock. It has steps that are at certain spots. I was trying to lower it and the lock pin dropped into place. I was forced to raise it higher to get the pin to release. It was pretty close to the hitting the garage door opener when the safety latch released.