I have managed to get hold of a pair of Classic Dunstall Rear sets which I intend to try and fit to my 500 Bullet. I have a feeling that some work will have to be done to make them fit, but I'm up for a challenge.
The reason I want to fit rear sets is the length of my legs, putting my feet on the passenger pegs is just that bit too far back, but more comfortable than the position of the front footrests. Mid way between the two would be ideal. It would also mean I'm riding a bit more "forward" than sit up and beg, better for my back.
I'll post pics when I've worked out the bodges needed.