You are correct that the type-in number of characters is limited for the address. If one copies/pastes the address, the characters are not limited. For the below screensnap if one right clicks on the file path and selects "copy address as text", the address which exceeds the text box length will be "pasteable" into the "file location" text box.
One thing that I have noticed is a limitation on the number of characters allowed in the path for either a save node destination or a hot folder location. With a stock install of FFCore the path is far too long to set for either node. Your screenshots indicate that you do not have this limitation however. Is the length allowed for the paths a configuration setting?
You'll need to contact your local Xerox Sales Representative or Analyst. Engineering is not empowered to provide pricing information :) .
You could have one hotfolder with a Workflow containing a Collect node (with the specified number of jobs for release) and Save node feed another hotfolder via the Save node. The Save node file location is the 2nd hotfolder's location. See screensnaps.
We had a few Hot Folders setup under Process Manager which would wait until they received a specific number of files before releasing them to the workflow. How is this accomplished in FFCore? I have a screen shot from Process Manager to attach, but nowhere do I see the option to inlcude an image (only a video).