Kevin:
Do you want to consider this alternative?
A Bell&Howell 2709 camera modified by John OXberry (before he manufactured his own process cameras) from the original 35mm to 16mm movement and transport.
This has a process camera viewer housing on the front with eyepiece, groundglass, and register pins to lock in a test strip in the viewer.
The movement mechanism is the 2709 fixed pins movement (modified to 16mm).
I have had this for a long time.
Let me know if you are interested. My email address is:
jbehan@sympatico.ca
JB.