It looks like the Kubota example you show is an off-road trailer. If that is the case there are several manufacturers of off-road dump trailers/wagons of which many are in Ontario & Quebec. Most make several sizes and load capacities. When looking at the same class trailer from different manufacturers I have found the differences to be in metal dimension and thickness, rear vs rear & side dumping, and side board funtionality(hinged or not). As a matter of fact I'm very close to selecting a trailer 1.5 ton trailer for vineyard use. I've looked at AgroTrend, Pro-Haul/King Kutter, JBM Manufacturing, Pronovost, Taylor-Way, and Normand. For my purposes the Normand appears to be the best fit. Many of these companies make the trailers with different badging for other companies. There are many good choices out there but do pay attention to the construction quality......Gary
