How to fix an upright piano

[mikey]

So our middle C key has been broken for a while and only plays when the soft pedal is being used.  I'm pretty sure I can fix it if I can safely get to the key.  I know some of you are repairpeople so does anyone know how to separate the mechanisms from the entire piano and replace it?

[Olimar12345]

Contact Sebastian. Iirc, he worked in that field for a brief time.