How involved is it to rebuild the player mechanism of a Melville
Clark player piano with a spring-motor?  I am concerned about the
valves in particular, and I'd appreciate information as well on 
any other potential areas of concern for an experienced player tech.
How well do these instruments function when rebuilt well?

My dad is a semi-retired piano tuner in Wilmington, North Carolina.
He has a customer with the "spring wound" Melville Clark and she may
want the player unit rebuilt.  I'm in New York and wouldn't be able to
look at it for several months, and I'm not sure if I'd even have the
time to work on it or be interested in doing the work.

If you are a good player piano technician looking for work, who has
had success rebuilding these (local or not), I'd like your contact
information.  A reference would be terrific.  The pianos owner is
not sure how to proceed at the moment.  She'd like as much useful
information as can be provided and will be reading MMD.  Thanks.

Bill Maguire