Hey,
Ive not seen one either.

Agreed on date since its running the kirby,and by styling.

As Jack says,your going to be hard pressed finding info,Especially being made by a seemingly unknown Australian engineering company.

They could have made only 10 and went bust or made an small amount to contract. There seems to be a few small ads in the Archives relating to private sales/classifieds of 36" cut "Tow Tractor", but no images to clarify.

The good thing is the Engine is well known and the machine looks basic enough to break down or make parts for and restore.

I hope you find some info as its a really cool Machine and id love to restore it:)