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and its just not pretty enough.
For this comment you deserve an eternity of poor shifting and Italian unreliability.
Are you sure the chairing is damaged and it's not just shifting teeth?
If it is damage, pliers/shifting spanner to straighten the teeth and use a file to debur them.
As for the pedal issue, should be possibly to get the insert off the pedal with a vice etc and save the pedal, the crank is junk anyway.
Buy shimano.