Mike, here are a couple of organs that probably are not on the radar.

There is a player organ for sale which is owned by Gordon Harrison,
Degersheim, Switzerland.  I believe it is a larger Aeolian, and
possibly restored.  He is an organ tech who often works in Japan and
India.  His address can be found in the AMICA Membership Directory.

A very large Wurlitzer organ exists, originally a showpiece for the
firm.  It was an outdoor organ, voiced very loud, with a player
attachment for Style R rolls, installed at Roosevelt Memorial Park
cemetery in Gardena, Calif.  It has been dismantled and is now in
storage.  I plan to write it up someday.  It was installed in 1927(?).

Bill Chapman, in sunny, hot La Quinta, California