First post!
Great job on the bike!
Can't remember how or where I came across your bike (this CS-1) on the internet, but this appears to be exactly what I'm looking for. So my research lead me to this forum.
I currently own an 04 Yamaha FZ6 (my first street bike, bought new, now with over 11k fun filled miles) and have decided to (hopefully) replace it with a 2011+ Triumph Daytona 675 some day.
But I still desire a simply built, modifiable, air cooled, minimalistic (thumper), very light weight, easy to work on, cafe racer-style bike. Until now I couldn't find a potential platform that was appealing.
I'm still in the research and planning stage. So unless I come across info that suggests otherwise, I'll most likely find a used 2002+ S40 and do the mods myself using your parts/kit. I'll probably be in touch.