Need ideas for mounting a ladder on Packout

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The more I think about it mounting clamp brackets on a couple of the boxes should work.   The kind of bracket I am thinking about is the kind that are used to hold shovels and such.  Seems like those would work if they can be found large enough to hold a leg of the ladder.

Thats what I'm thinking, I would just hate to drill into the box. I was thinking of 3D printing some brackets that would lock into the packout system but I don't even have a 3D printer lol.

Excuse the crude drawing




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