There were only Three Keyways(shift dogs) under the shift collar. Underneath the 4 hex caps on the intermediate plate in the 7th pic down, are(from outside-in)hex cap, then spring, then that ball bearing lookin deal rides on the shift forks to provide detent when shifting. Those are the bearing things from your second pic. And from your last pic, I'm thinken your gonna need a whole new 1-2 syncro assembly. the hub collar isn't even there anymore, and i don't see the dog teeth for the no.1 syncro. You should rebuild the whole thing. All that carnage don't look right.