The handlebar issue isn't as bad as one would think. I have a Bags Connection GS quick lock bag that I used on the Deauville which I've attached a new mounting ring for on the Trophy.
Sure, you limit the steering range, but it is only a practical issue at slow speeds such as when doing a U-turn on a narrow road.
If I didn't have this bag I would definitely go for the Trophy bag, and I still might at some point, but if I was going away for a week or two I wouldn't have any qualms about using my current one.