FWIW, I bought a new HD 110 cab/chas in January which was fitted with a steel tray and it weighed in at 2000kg. With the GVM of 3500 kg for this model it means I have plenty of load capacity.
We put a 1830 wide Trayon slide on on the back and so far have done a week in the high country - with the Trayon on the back all the way for added traction and 3 weeks around Lake Eyre and the Simpson.
Apart from an ARB front bar, tow bar and an extra 84 litres alloy fuel tank under the front of the tray it is stock standard. Even to the showroom tyres !
It has been great. We found it to be surprisingly comfortable - I am 180 tall - with the only drawback being the lack of space in the cabin for odds and ends. Pity they don't make an extra cab version.
It is my daily driver, so far we have put 20,000 on the speedo and enjoy driving it as much as the D2 V8 we have. It is just different !!
I also have read that the 110 cab/chas has been discontinued. A great pity.
So good luck with your investigations.

