Examples of earlier Pacifics that could be modeled from this cab
Here are some examples of earlier Pacifics that could be modeled from this cab, if you are willing to either scratchbuild or do files to 3d print different fenders and front ends. Most of these you would not be using the planetary axles, a good donor kit for running gear would be the AMT Autocar dump, as it has an older Cummins with the correct intake manifold to build a non-turbo engine, and a heavy spec rear suspension with Timpkin toploader axles. These axles were the basic 'go-to" on on-off road logging trucks here in BC in the 1960s/70s, in fact we have several trucks here on the farm with these axles, one a 1965 Kenworth LW923 with similar suspension to the Autocar kit, we also have a seventies International with the same Timpkin toploader axles and a rubber block walking beam, either of these set-ups would be prototypical for a sixties era on-off road Pacific logging truck that you would typically find in BC. For a model like this you would typically want to use 6-spoke Dayton wheels or five hole steel Budds.
1951 Pacific
early fifties Pacific
early 1960s
later sixties, seventies
McMillan Bloedel colours, biggest logging/forestry company in BC back in the day, these red white and green Pacifics were everywhere.
There is a LOT that can be done with this basic cab, through variations in front sheetmetal and running gear, some easy, some a little more complex, but you can see the same basic kit cab in all of these photos.