I have a 46 2-ton and a 42 or 46 COE sitting at my shop. I have owned probably ten of these style of big trucks. From everything I can see and have seen, I do think the cabs on all have been the same and I believe they are the same as all the 1/2 through 2 ton trucks of the Art Deco period. The doors on the COE appear to have been "modified" at the factory to accept the fender cut out.
I am in Indianapolis,In. and would be glad to show you in person or take some measurements to verify.
