1974 oshkosh cab over

[CAT29]

Hello everyone
Here are some pics of the start of my new build i am building an oshkosh tipper it is a truck that my dad used to own in the 70's he tells me it was the last one to come to australia it had a 450hp cat and he says it could go allmost anywhere.
I have a couple of photos to work from but thats about it so if anyone has some photos or info it would be apreciated this is my second truck and very much my first cabin from scatch so any advice would also be apreciated.
This cabin is made from cardboard i am just trying to get it to look right then i will start with the styrene