Harv has been looking for a spray rig. This is what he needs. each wheel is powered by a hydrolic motor, It has no axels so a tall crop can be sprayed without breaking over the crop.
Bob, Harv would have plenty of room underneath it to fit everything! Add a rack and skid plate, and he would be ready to go! Might even be able to drive across his pond, and do a little trolling on the way!