If you thought changing the starter was a PITA just wait till you have a transmission issue!
This is probably the best turbo build I've known of that has actually been completed.
Many have inquired and started but this is the only one I know of that has been successfully completed.
http://streetfighterperformance.com/...s/author/EricZ
BTW as Lunatic pointed out; there's A LOT more to adding a turbo to these bikes than just bolting one up and figuring out the cooling and exhaust challenges.
Be prepared to split your cases and empty your pocket book!
Good luck
And welcome!