it is hard to tell from the pictures if the plates are ok, you will need to take the plates out and have a close look at them. You'll need to take the clutch apart, fortunately taking the contents of the clutch basket out isn't that bad. Get the manual, follow the instructions, and where it says "do not use an impact to unstake the clutch nut", you'll likely need to use an impact to unstake the clutch nut. I was unable to get it off any other way. Fortunately that is really the only thing that holds it all together. The outer plate is marked different than the other plates. If it is just a broken/cracked plate, its not too expensive to replace, around $150 IIRC or so. The fact your getting clutch slip is a pretty good sign its the plates or springs.
oh, and you will need a new clutch nut if you take it off, you cannot reuse it
Don't be a road crayon, pavement does not care how cool you think you look in a t-shirt and shorts.