Chevy sold there 1930 trucks cab and chassie, no bed was offered by Chevrolet, or a chassie with four fenders hood and cowl, cowl will unbolt from your cab, A chassie could be sent to a local body builder or the owner could build his own body
A "C" cab was getting a little out dated by 1930 ,but it is very possible that one could have been installed on a new 1930 chassie.
I also have a 1930 1 1/2 ton truck a "LR" is yours a "LR" or "LS"?