Ouch, I was afraid that would happen. Breaking the pressure plate is one of the other most common clutch woes on these bikes. Since you nabbed a complete clutch, compare the "new" basket (outer) to your existing one and see if the slots that the clutch plate tabs ride in is in better shape than yours. The edges of these slots can sometimes become worn or dinged, resulting in a slightly noisier clutch. Not always, because the tabs on the friction plates are softer than the material of the outer basket. Also compare the clutch centers where the teeth of the clutch plates ride in the splines for the same sort of wear.
Also dry-fit the clutch center and clutch outer as per the earlier pictures and mark their orientation, to speed future disassembly/reassembly.
cheers
mystic_1