Brad, you said it has a cheesy set of legs on it? I have one just about like it. I would just mount the legs to the trailer. The drum has to be on a fairly good angle or they don't mix good. If you put the opening higher it will hold more but not mix very well. It looks like it has some notches to make it adjustable. You may have to just play with it. Mine has a small electric motor(1/2 hp off of swamp cooler fan) it turns it just fine but the gas would be great for portability but may need more speed with the gear reduction.