My opinion on carbon fiber pipes are to get aluminum ones. The carbon fiber fades with UV exposure, and the weight savings on a guzzi is like one feather on a goose. I have round mistral cans, and I like them. I think the ovals look better, though.
Consider getting a Stucchi crossover- I found that to be a very effective mod.
I don't know if Edge is still selling "edge guards" (do a search), but they are a nice addition to any fender eliminator. FBF and maybe rossopuro sell eliminators. FWIW, I bobbed my own fender- it was cheap and easy. FWIW #2, if you eliminate the fender, the rear wheel will throw crap up on your back, because it sticks out ever so slightly behind the tail section.
As far as getting said pieces, you might call MPH cycles (a site sponsor) or Moto International or, since you are in the midwest, Ned's Auto and Cycle in Riverside, IA (my local dealer). All are excellent.