I removed the bolts one side at a time , set the bar in place and bolted it up. I didn't have any trouble. It took me maybe 1/2 hour total.
I didn't have any instructions either, but I didn't have any trouble. I too have a '16 Eldo.
On another note, if you desire bags for the bike, Hepco Becker makes mountings for their C Bow bags. More capacity and less $$$ than the Guzzi bags. Do a search on this board and you can see my pics of the bags and installation.
John Henry