None of that really has much relevance in its rarity though.
I can't see too many cab-chassis being cherished today, perhaps only a true Survivor in L31 M41 combination someone might like to keep in original condition. I used to always have tonners as they were easier to keep alive (less rust prone) and better to tow with as the longer wheelbase helped. But today I can't see the point, a VY-VZ V8 tonner is a far more comfortable car.