the end retainer plate on the shift drum could be easily taken off, and dollied up flat again.
it is hard to say if it will foul and bind up, but there is a chance ?
personally i would be more worried about the damage that has been done to your kickstart gears !!
eg the chips in the kickstart driven gear(behind the clutch), and the wear in the teeth of middle/idler gear'
i think you should buy a new set very soon, just incase ?