That's exactly what the bar is for. Just swings down and sets onto the base just above the cushion. The spare tire thing might work, but I have the spare on the factory mount right now. One of the next things I'm looking at is a rear bumper/swing out carrier that will be more sturdy. I have someone who does fabrication, and I was considering a small ladder of sorts mounted to the swing out carrier that would be better than clambering over the tire...Is the bar clipped to the ceiling (just behind the center lamp) a prop that would prevent the top from closing? If so it is a great idea. If you had a heavy load on the roof (more than usual for the spec of the gas struts) then the prop would eliminately any potential sagging.
It also seems it would be possible to circumvent the hatches by simply climbing up the spare tire and going in through the rear windows instead.
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