Both Intermountain and Sunshine offers kits for the CNW war emergency boxcars.
From the Sunshine Models data sheet for the 1943 built War-Emergency boxcars.
CNW 77416-77748 (Even numbers) Pullman, Viking Roof, Youngstown Door, Apex Running Board
CNW 77750-78248 (Even numbers) Pullman, Viking Roof, Superior Door, Apex Running Board
CNW 79250-80250 (Even numbers) ACF Murphy Panel Roof, Superior Door, Gypsum Running Board
The 79250-80250 (even) was rebuilt by the CNW in 1963, keeping the same car numbers. The cars were resheathed with steel and the door opening was stretched to 9 foot. The doors were also stretched by adding a three foot section to the center of the door.
A 1971 ORER shows 454 of the 79250-80250 series, while the a 1978 issue shows 0.
Another picture of a rebuilt car appears here
The rebuilt has been on my hopefully some day project for a few years. However there may be a resin kit out there but I have not been able to find it. In the recent modeling press, in an advertisement for a right angle clamp, there appears to be a side and an end in the clamp for the rebuilt boxcar.
Michigan City IN