Looks to me that Shoupe has by far the best prices on New parts and will even ship Free, if you get enough parts.. If you have pretty "average ground", you can pull 3x16"..as long as you have good tires.. I do not think there is any problem pulling a "Semi-Mounted" plow.. I have successfully pulled my F-145 4x16" Semi in very hard plowing conditions with my 630 and while it was a maximum load in 2nd..the main place I had to have weight was on the front..about 300 lbs...New, Loaded 15.5x38" and 2 wheel weights on each side.. Weight transfer with a Semi not using the top link..?? The Front was real Light..I'd say it has all the weight transfer it needed..!! 3x16" should be a piece of cake... I am cutting one F-145 4x16" down to a 3x16" Semi-Mounted, just for something different.. Either is good, the Fully-Mounted takes up less space, but will require some front weight to be safe while transporting on the road.. No reason to think about any 3x14"..it is not enough to even make the "Load-Depth" control active and operate correctly..