So here's my toolkit with the one tool you mentioned. The Koni shock adjustment tool is to the right (for those that don't know).
Here's my cap nut. I see no slotted nut.
You can see on this view my concern for using stock risers. The fairing supports would not be in the way of the bars once they are rotated back and down, and the controls would most likely clear, but I'm wondering about the cables. I will figure it out since I won't let those fairing braces ruin the party.