From what I've found from a quick look is that Star trucks were made until 1928, then became Rugby. Although Rugby was used overseas before that. There is a photo on the net of a Durant Rugby display from 1928 with an enclosed truck cab, but the pickup is just a chassis and cowl. These may have been 1929 production models. They appear to have the Durant radiator shell, except the grid has been removed.
Before about 1926, it was more likely than not, that pickups were sold without factory cabs or bodies.
Durant used Martin-Parry cabs, but owners could also buy Hercules or Superior cabs. Catalogs for Martin-Parry and Hercules can be found on-line.
I have seen pictures of surviving wood boxes, and may be able to retrieve them.