Might I suggest you check out Blue Collar Bobbers, he offers a cafe' racer kit for the Ninjette.
http://bluecollarbobbers.com/kawasak...r-aka-gpx-250r
He also sells parts of the kit separately if you contact him via e-mail.
The dashboard kit is amazing
Link to original page on YouTube.
And the headlight/turn signals set-up
Link to original page on YouTube.
Link to original page on YouTube.
No sense in trying to reinvent the wheel, when someone has already done the hard work for you.