Whenever I load or tip on a farm I tend to be a nosy git and have a mooch around the barns.
Look what I found last week …
Looks like you happened upon an Aladins cave there Toowise 
An i’m jealous 
Apparantly the guy rents the space from the farmer, he doesnt restore them just sells parts via ebay and other outlets.
Shame really as some of them wouldnt take too much to restore to their former glory.
All told there must have been about 20 odd vehicles, mostly tractor units with a few rigids 4,6 and 8 wheelers.