Seeing as it is a carb'd bike TurboKaw is going to be your man.
When fabricating the header, be mindful of oil levels with respect to the turbo.
My guess is if you can get the bulk of it fabricated, you can tinker with it till the end of time.
Sounds like a great project.
I may be able to help more a little later... doing a bit of experimenting right now with mine.
Good luck!
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