BWA disc drawbar

[CraigM]

I'm looking for a disc to pull with my 3020. There is an 11' BWA with notched front blades coming up for auction. I've never seen this model, so I checked tractorhouse and found a few pictures. How in the world do you hitch it up or turn with it? The drawbar looks impossibly short, and I don't see the bottom half of the hitch clevis.

Would anyone have reservations about pulling this disc with a 3020.