Thanks, the range increase is about 20-25% on motorway speeds. A kit won't happen since the fairing itself is an old used one, so it would be very hard to get a similar model.
What might work better is an R1/R6, since everybody is crashing those all the time there is a healthy supply of third party fairings for them. The kit itself would be just some brackets that you can make at home or a local welder.