Informations on Chevrolet 15 CWT needed.

[Parabellum]

Hi there,
New on the forum, I wonder if somebody could be of help for a french guy who is planning the building of a Chevy 15 CWT plastic kit? My father used to drive this type of truck with the french army in Indochina, during the 1946-1948 years, for gun towage.
I am looking after informations about the aspect of the body and cab floor, regarding the GS 15 CWTs with all steel body from the 2C1 type. Was this body floor made of slick metal or of corrugated metal (may be one photo)?
Otherwise, I would like to know all the measurements of the side panels of the 2C1 body. Not only overall length and highness, but also interlapse between stiffeners, length, highness and thickness of these stiffeners. Same inquiry about the upper and lower tube framing of the body sides. Of course, photos would be useful. Don't shoot me for so many questions!
... and for my not good enough english speaking.
Regards,