The coolest (I think) light bars for Valkyries (Rivco and Cobra) are no
longer made and practically unobtainable these day$...
If you don't go for the crash bar mounts (they'd get in the way of my
feet when on the highway pegs) you might want to look at
these:
http://www.bigbikethings.com/winddeflectors.htmlI have the winddeflectors. It looks like he just makes a wider version
to mount lights on. Anyone have these? I also have the forward controls
from here, they make good stuff.
Here's the wiring diagram I used when I first wired mine up, it is from
Rivco, but is just a generic wiring example. right-click/view-image will
make it plenty big enough to see:

I used the blue wire from the head light for my "Any Wire"... my driving
lights come on with high-beam, I can really light up the road and
then dim them as normal to keep from blinding people.
-Mike