Congrats! What year? How many miles?
Find it on CL? Post a few more photos if you can. I'd like a 250 project like that myself.
I assume you've seen Alan Smith's 250 from the Vetter Challenges, but here's a link to it -
2011 Streamlining a Kawasaki Ninja-Chap 44
...and some more info -
Craig Vetter Fuel Economy better mileage
Introduction to fuel economy
Jay