Tuning Hummmm, what to do with my Cricket?

Hey there guys and gals, ran into a problem with the Cricket. Had developed the indexing problem, got the gun second hand and knew it was hanging up once in awhile, but got progressively worse. Upon closer inspection the lower pin that the indexing arm rides on, the slotted pin, has broken. Bummer:( Ok, part of the enjoyment of ownership for me is repairs but this one has me a bit concerned. It appears that the pin I need to remove to slide out the part that has the broke pin in it may be able to be punched out from the left side? Very small pin hole that a 1/16th punch is to large for, is this a hint to not mess with it?? Any helpful hints would be appreciated...
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