Given that they are agi's I reckon Werk is probobly on the money with Rex, that and it wouldn't be too obvious otherwise it wouldn't be a quiz. LOL.
Just out of interest, the chequers on the foot plates behind the front bumpers run the same way as the Diamond Reo ones, from memory, the White ones ran 45 degrees opposite. The red one has a fibreglass bonnet as well. Wish I could have found one of them when I was doing mine.
Ute, the cab was mounted at different hieghts for the Diamonds and the White as well, so the radiator and grill was shorter on the White 2000's. They are all similar but a few little differences.
Oversnow transport, and I don't think Australia (I may have some photos of Perisher - Charlotte Pass versions).
Fuel in kg knocks USA, but it looks more American than European, so I'll go for Canada as a location; I haven't a hope for maker.
Most snow groomers in Australia are Kassbohrer (spelling?), but this isn't a groomer.
the green rex with the chrome rad surround is in don robertsons yard jerome az the yellow t9000 white beside it was a resident rattler living on the 220 cummins that powers it ! i discovered this the hard way by lifting the hood several years back!