Remote Release
While I love analog photography, I do not enjoy equipment that is missing essential features! Perhaps the most trying limitation of any purely mechanical camera is the lack of a remote release.
If you're using a camera built in between 1990 and 2000 there is a good chance it has a built-in self timer. I wish manufactures of high-end view cameras had spent the time to make an elegant self-timer to bundle with their camera bodies.
Remote Control
As far as I know infrared remotes were only ever available on Canon and Nikon 35mm cameras. These would time out if you waited too long to take the photo, which is limited their use in some cases.
Air Bulbs
Air cable releases are still made, and can reach as far as 20ft. A short extension cable may also be required for the shutter release on view cameras since there is a piston at the end of the tube. This mechanism is very slow to react (2-4 seconds), so and you don't know exactly when the shutter will fire.
Custom Trigger
I assembled a mechanism using the simplest possible design I could contrive. This trigger is mounted using a 5/8" baby pin with 3/8" threaded tip, and adjusted by adding rubber-bands. This mechanism is quicck to respond, but the flaw is that it has the potential to add vibration.