The centerstand installation instructions are very piss poor!
I just took a better look at my work and discovered there should be NO extra parts at all.
I looked closely at the sidestand spring and see it's a small spring inside of a larger spring. The Centerstand uses the same idea. That is where the "20-00709XX S KS Spring In" goes. Inside the much larger centerstand spring.
I removed the two large centerstand bolts (one on each side, Torx 50). I discovered this is where the two "20-0245503 X Brake Pedal Spacer<s>" go. They didn't seem to fit at first, same issue as the "four 20-0246501 "Iglide Bearing GFM-1416-06" had. They do fit, but are pressed in by the bolt.
IOW, the four 20-0246501 are the inserts for the "20-0245503"
Fortunately, I was able to take care of both of these issues even after I "completed" (so I thought) the job yesterday.
I put a little general-purpose grease on the outer bushing (20-0245503). This bushing stops the centerstand bolt from turning when the centerstand is used. I was somewhat concerned about this yesterday.
Obviously, Zero is using some stock parts from other bikes or whatever to get some of the parts for the centerastand. The "Brake Pedal Spacer" becomes a centerstand bushing, etc.
I now feel I have the job done correctly. But they really need to improve their installation instructions.
I just edited my first post in this thread as there are NO extra parts. Just these parts are not mentioned in the instructions.
-Don- Reno, NV