As for the slipper im not sure
but for clutch replacement just do it all, all the steel plates and all the friction plates, and the springs.
if its similar to my katana and my guess is it is,
tip bike over some and slide all the plates out remembering which order they were
re install in reverse order, also find out if your friction plates need to be soaked (impregnanted) in the oil you will be using
just my .02 but its fairly easy overall and saves a lot of money.