This is for Todd Augsburger, with the good player in the bad piano.
Find a competent piano tech in your area who's not scared of players
and have him rebuild your piano action, if that's all that's wrong with
it.  Also, have him regulate it and level the keyboard -- you'll find
that it is money well spent without collecting another piano that your
Simplex mechanism probably wouldn't fit in properly anyway.  Who is the
piano manufacturer?

Dan Armstrong
Armstrong Piano Tuning & Repair
Pine River, MN