Saw these on a 75 series facebook page.
The consensus is a fibreglass cab replacement kit that people use on some of the Island’s around here like Fraser, Moreton etc.
I think they were moved out of respect for the original poster who has had his thread hijacked by military pic’s. Pretty sure there’s an opening for another thread though called military use of 70 series ?
@lazylfarm I made one of those. I inevitably did some mods and cut the back off to match my car.
But talk about flex!
Also found this on a fb page that may be of some interest