Do realize that the S fairing is designed for the 7" headlight, not the smaller R65 6". It may be possible to find a fairing with a modificed headlight opening.
The other possibility is converting to a 7" light, but that also requires the larger headlight bucket, modifying the mounts or custom headlight mounts...
If you use a fairing designed for a 7" headlight with the smaller R65 light, there will be a large gap and won't look good at all.