I installed one for a customer on a 1098 about a year ago. I don't know what brand it was, but the fueling package screwed directly into it and it's still in service with no issues. The bike is street ridden and the ONLY fuel you can get in my area from consumer pumps is 10% ethanol.
The issue with fiberglass tanks and E10 has to do with the resin used, which shouldn't be an issue with carbon fiber. Some fiberglass resins dissolve in the presence of alcohol.........and I never trust manufacturers words that they're OK after Glass From the Past told me his fiberglass tanks were E10 friendly, only to have the $800 tank I bought from him for my Aermacchi come unglued.
Carbon sure is pretty, but I believe I'd go with aluminum if it's my bike. As previously mentioned, not much lighter than aluminum and impossible to repair after it gets mangled.