A couple of comments on the Kawazuki post pointed out another Suzuki frame with a 2 stroke transplant, and after a quick look at the photos, this one, "Kwikasfaki," is simply a lesson in how to do it right. The entire build is documented in a very long (60 page) thread on the Custom Fighters forum with lots of in progress pictures.
The major pieces are a GSX-R400 gk76a frame, GSX-R upside down forks, an R6 swing arm and a Kawasaki ex-drag bike H2 750 triple engine. The wheels are brand new Dymags that he found on eBay with the tires. Very nice.
If you want all of the details I suggest you start going through the build thread, but the bottom line is this is a really superb project. Excellent work!
Thanks to Justin and Talon for the pointer to this bike.
Link: Custom Fighters Kwikasfaki build thread