Not IMHO. Although these units can be ordered (in Canada) they are not a great highway unit, especially in a 3 axle combination. Dual steer combines with tandam or triple drives serve the purpose where a lot of weight is carried, but with a single drive, you have too much weight up front. This creates a real problem on ice and wet or mud roads, as you loose the steer, even with the best anti-lock brakes, in sudden stops.
WORKS LIKE AN ARROW. HEAVY END GOES WHERE THE MOMENTUM CARRIES IT.
Now this I would go for, but you would need to be carrying all your gold bars to justify it.