Thanks for your advice. I'm starting to think, just shoot the whole thing silent then ADR everything with more effort. That's what I'm really aiming for here, going cheap.
Get yourself a sync motor or at least an ARRI constant speed motor for the camera. DO NOT shoot wild and try to ADR in post, it's a nightmare.
Shoot with the sync motor or at least the constant speed motor (which won't run at exactly 24 fps, but it will run at a consistent speed somewhere between 23 fps and 25 fps, in other words, the speed won't fluctuate) and record a scratch track on set. Throw an old leather jacket over the camera to quiet it down some. Use that scratch track, even with the camera noise on it (maybe take out some of the camera noise with noise reduction software), for a reference so when you do re-record the dialogue, your actors can listen to how they originally did their lines and it helps them to nail it in ADR.
The wild motor is exactly that, wild. It will fluctuate in speed during each shot. It is not only a problem in recording dialogue, but in exposure, where your image will get lighter and darker as the camera speed fluctuates.
To find out more about all the motors available for the Arriflex 16S, visit this web page:Arriflex 16S Motors
And to find out about how to record sound with a noisy Arriflex 16S and remove some of the camera noise with noise canceling software, visit this web page:Quieting an Arriflex 16S with noise reduction software and a Barney
You can also get a barney for the camera from Custom Upholstery Products. Look them up on the web.
Good luck with your film.