These are the points to which I mounted. Though the front point isn’t ideal, it already exists and the holes are is reinforced in the lower so it’s strong. The spacer is to move the shaft up over the turn signal bracket.
The headlight frame will need mild massaging with a Dremel or die cutter to clear it so as to not hit the top of the leading edge of the heim joint, easy job.
If you’re not running anything on the forks that will interfere with a fork clamp, just use a fork clamp instead, it will be the ideal angle/fit.
This will all be different for a Touring...