As I know setting up a hot folder and auto ingest is possible however automatic FTP upload is not a feature of PM. (Kirk will correct me if I'm wrong.)
If my knowledge is correct an option may be to find a method to mount the FTP directory to appear for PM as a local folder in the file system this way PM can use it as a destination folder for the live ingest.
An other option is to find an FTP client that can monitor a folder and upoload from it so PM can catch live ingest the photos coming in put them to another folder and the FTP client can handle them.
Anyway an FTP feature in live ingest should be a good addition I would definietly support.