Are you doing this because you want to see better at night?
Or, are you doing this for the project’s own sake?
If what you want is “more useful head light”, I’d recommend reading Daniel Stern’s article.
(Actually I posted this in tutorial section, and there’s a link to Daniel Stern article, the beam shot of BOSCH headlight with relay / harness + high wattage bulb in there. When set up properly, those stock head light isn’t that bad.)
http://www.ducatimonsterforum.org/index.php?topic=69572.0Another option is LED bulb that simply replaces stock H4 bulb. (You will have to cut the bucket, though.)
http://www.ducatimonsterforum.org/index.php?topic=69146.0Unless you are doing this headlight mod for the styling reason, you will get the better result with either relay / harness kit with high(er) wattage bulb or LED replacement bulb.
The best option is to add a set of auxiliary lights, if you really want to see better at night.