Rock Island & CNW Rebuilt USRA Box Car Detailed Drawings Needed

Ross Dando
 

All, 
I know the shake n take kit was done a few years ago and that there are drawings in the car cyclopedias.  Working on an O scale master and I have been unable to find detailed enough drawings to determine the cross section of the sides and how they were attached to the existing frames of the car. Does anyone have a detailed general arrangement, erection drawing or anything to give me the bread crumbs to get me there?
Thank in advance,
Ross Dando
Meridian, Idaho

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