Would suggest 2 items, a
Universal Vista and a 3.5 gallon
Tour Tank.
The Vista is not a bolt-on fit, but with just a little bit of help, it works fine. I had to cut down the static arm and use one of the grip housing screws to hold it. The new HD Vista is for 1 inch bars, the original is for 7/8. The tour tank helped by increasing time between stops from 2 hours to over 4.
You may also want to consider some kind of shield if you don't already have one.
