Hi Nick,
My workflow is use iSTAR then scan.......
back in the office, I simply add the scan number to the RAW iSTAR folders ie 20150328-015218-001 20150328-020125-002 etc
now drop the exported e57's into the corresponding folders and then batch the folders into ColourCloud.
I'm sure you're aware, iSTAR folders are yy/mm/day - time.... which can be matched with the time on the scan station .ini file if anything goes wrong.