For anyone interested, The new pullback risers are now available from the factory, and I would think, through your dealer also.
I received mine from the factory a few days ago and have installed them. Kit includes Chrome risers and chrome engraved handlebar clamp, riser and handlebar clamp bolts, 6" longer throttle cable and brake line.
Price was $260.
I think the riding position, for me at least, is more comfortable, and because the handlebar is now higher and clears the instrument panel, I was able to adjust the fork stops to allow a better turning radius.
Gas tank removal might be a problem, but I won't swear to that as I haven't tried removing the gas tank yet. If it is a problem I think loosening the handlebar clamp and rotating the bars up should suffice.
We'll see eventually. But other than that, I'm happy with the conversion.
Here's a few pics.