Why don't you consider using Bolex 16mm cameras.  If you contact
Chambliss Cameras/Film Equipment in Atlanta, Georgia, they seem
to be quite helpful in finding and maintaining this equipment,
and the owner of Chambliss is in love with Bolexes.  You can
obtain quite inexpensive, but good 16mm film processing and work
printing from Commonwealth Film, Inc. in Richmond, Virginia.  I
have been quite happy with their color negative processing and
workprinting in 16mm.  Does anyone have a 35mm slide to 16mm duplicator?