Sophos and Synology NAS expert

Hi Airtaskers, I am looking for someone to setup Sophos so we can access our Synology NAS. I have team overseas they use the Synology NAS. We had this set up earlier but we've moved office and previous IT expert did not took the backup of the Sophos hence it's not working. We primarily had Sophos due to fluctuation of the IP address which was working fine for the last 8 months but since we've moved office our overseas staff can't connect. In fact, Sophos is not configured so it needs to be configured. I am looking for someome to configure and supply us the backup with a guide as to what needs to be done when we move back to our office.