Backup the whole thing on harddisks and store one at your bank (if they do have that capability where you live) and another one at some relatives place. Encrypt

Backup the whole thing on harddisks and store one at your bank (if they do have that capability where you live) and another one at some relatives place. Encrypt and seal of course. Update that with "slow" data every month or couple of months. Decide what needs to be backupped daily/weekly and pay some money for that to do it online. How much would it be worth to you if you lost it in a second?