I had a great experience with Josh at Kissell's as well with my Stelvio. As for the top box, I covered the rear passenger seat with plastic then layed up carbon fiber over itt to make a shell. I then removed the seat cover and foam and used the existing base for my new shell. It is big enough for tools, air pump, primaloft jacket, and my Dirt Napper for recovery. What is nice, is that it locks and is only an inch abover the grab rails, so you never hit it when you swing your foot over getting on/off the bike. The bags I went with the SW Motech Blazer simi soft bags.