[Susan Sowers]

Zach, probably the fastest way to accomplish RGB to CMYK conversion is to create an Action.

By going into the Windows/Actions pull down menu, you can create a new action, name it and then hit record and convert one of your files from RGB to CMYK and then hit the stop icon, the square.

As far as printer color profiles, if the exact printer cannot be identified, saving in CMYK should get the job done sense it clips the colors to fit the color profile. Hope this helps.