Well here is a mockup using part of the CT90 frame. I actually hack it out and used part of the CT90 swingarm bolt tube to mount it on the suzuki swingarm bolt.
ImEasy's pit bike exhuast stuck on there. Going to use part of it and an xr80 exhaust I have.
The kickstart lever will need some reworking to clear the frame.
I really think that I need to raise it about 3/4" to get the countershaft more inline with the swingarm bolt.
This will work.
Allen