question about a peterbilt 320 compact coe

[PetervR]

hi I'm trying to find information about a cab to make scale drawings.
I'm not sure I'm actually going to build a truck with it.
making a virtual model is half the fun.
I have got picture's of the cab from all the richt angle's. I just need a lenght width, hight, to start from. I could take the wheel as a reference.
but if someone could tell me the asked dimentions I can get a better start and an better model.

the picture's I found are from the internet.
.


many thanks PetervR