Dear Steve,  Greetings from The Bronx.  Sorry I don't have any pictures
or tubing diagrams, but attached is a link for a YouTube video featuring
a Wurlitzer Photoplayer:  http://www.youtube.com/watch?v=i-Gk6b5sj0k
 
Albeit, it is a short video, but it demonstrates what can be done with
time and patience.

This particular instrument is a model YU, which was equipped with
two spool frames, one for 88-note rolls and the other for Wurlitzer
Concert PianOrchestra rolls (hence the automatic register changes and
percussion effects).  This instrument is presently in a museum in
Europe.  I hope this helps a little,

Sincerely,
D. F. Rowe
Bronx, New York

 [ A smaller photoplayer at Museum Speelklok in the Netherlands:
 [ http://www.youtube.com/watch?v=2ticodMDh_M