If you do try to mount the huge monster truck tires onto the truggy you run the risk of killing clutches. I have not tried it, but I would highly recommend against it. In my opinion Monster Truck tires belong on a MT not on a truggy.

And as blitz mentioned I am not sure if you would get enough steering. But you might, as the stock Nemesis and Genesis/GST rims all feature about a 1/2" offset, so this may be enough in theory to fit. Again, I would NOT recommend actually trying to run the TR Arena with the Monster Truck tires.