I looked pretty heavily at the crewbed. If you google imagery there are a couple of ideas. Their web page no longer works not even sure if they are still in business.
For what it is worth Epic Family Road Trip has one on a JKU and one on a JLU and they look like they have been holding up so far with rough terrain, Fuel tanks on the back and towing trailers so may be they will provide some insight at some point?
I have a dual battery system and a goal zero yeti 400. I was planning on using just one at the top ( something like this: ) but I don't know enough to say if that is right or not.
I usually start off with everything frozen and ice so this would just be a supplement.
With seats down it is probably about same as goose gear. I usually leave the 40% rear seat up and basically do a partial dip (like the arm/chest exercise) and put my foot on the upper part of the seat to help push up into the top part. I am 5'9" 180 for size reference
Does the tent separate from the bed canopy/topper portion? It shows 2 parts on their website but does not say of that is a feature or not.
I would love that, being able to store tent when not in use + still have a truck bed canopy/topper