GRCS questions about specs

I am hoping to ask a few spec questions and measurement questions about the grcs from someone who has one that might be willing to snap a few photos or do some measuring. Working on a project similiar to a grcs and looking for some quick numbers on a few things.
 
I was looking for some rough measurements of size of the flat plate parts size of the tubing used to make the hinge areas and the top plate size of bar stock used for the pig tails and the actual thickness of the steel plate used and aluminum plate used. nothing to crazy just curious about the sizes so I could do some research on the materials and strengths etc
 
Some pictures
 

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Some more pictures
 

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I would say having built one of my own (wanted a bigger winch) and having used both of the grcs versions (the original and the updated arborist long drum winch) get the new version and call it done...
 

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