Bluthner brackets

[A440A@AOL.COM]

Greetings, 
    What a drag.  Songwriter's piano, a 1970 Bluthner.  The action brackets 
have expanded and there is no way to regulate the action. The hammer tails 
are catching on the rest rail across the three middle sections, and the jack 
tails and drop screws are barely touching the edges of their pads.   
   The two choices are to elongate the hammer rail holes and close the spread 
that way, or to replace the brackets.  Anybody ever replace brackets in a 
Bluthner? Are the models still current? 
Wondering, 
Ed Foote RPT