For your shopping list above, consider adding new clutch springs - especially if they've never been replaced.
To me, the hardest part of clutch work is getting the cover back on with the fussy little alignment dowels, and making sure the spring loaded mechanism that connects to the clutch cable is in the right spot.
i was thinking about that. I've done stiffer clutch springs to several bikes in the past, but none that had a slipper. I'm not sure if stiffer springs will prevent the slipper from functioning as designed. Factory clutch springs are only about $4 each so it's not terrible.