You might already know but have him check the website for the specs on where to place the brackets. On my trailer the battery brace is right in the way. I set it to the long position and the bar fell off turning a tight turn.
Moved it forward but i wasnt happy. Ended up grinding away some of the battery bracket to move it back to the sweet spot.
I found a used one on craiglist. These days i would check offer up and letgo. Unless money is no option then just buy new. Think its like 800 bucks right?
My little clips that hold the bar down were bent. Thats what i get buying used. You always get a little bit of someone elses mistakes.