Link to autocad drawings for a 15 cwt body is at
http://www.mapleleafup.org/forums/sh...hlight=autocad
Some tire carrier info
http://www.mapleleafup.org/forums/sh...hlight=toolbox
For one of the toolboxes for the 15cwt George MacKenzie drew up a set of plans but I can't find a link right now.
I don't have any idea if any of these plans are suitable for your truck or if the different plans can be used together.