Hi Stormin
Change of thought
Find a piece of channel that will take the plough hitch make three or four holes in it to accept the pin measure the wide from inside of back wheel.
make first hole 7 inch second hole 8 inch third hole 9 inch fourth hole 10 inch weld your flat bar to the back this should make the hitch like the letter T on its flat now i have though it out I can now go to sleep. sorry about so many changes
If you can vary the width you can vary the depth
George S