Custom Crucianelli Accordion 50s White Pearl (Repair)

Here's a Crucianelli accordion from the 1950s that needs some work.  I'm not an accordion guy but I'll explain as best as I can.  All the bass keys work but when you press a single bass note a couple others also seem to depress part ways.  (I don't know if that's normal.)  On the keyboard the low Bb is weak and the low Ab does not make a sound.  (All the other keys work.)  Some of the rivets (see pic 6) are not in all the way.  (The particular one in the picture is the only one that is almost out all the way.)  The bellows have had a repair (pic 5) but seem to function normally.  And of course some of the plastic letters of the logo are missing.  The original case is in pretty good shape but needs a handle.  There is a water mark on the outside bottom but not on the inside.  There is no sign of a water mark on the accordion itself.  If you are an accordion repair person then this could be for you.  $100 plus $35 shipping.