[jacquesm]

For something on the timescale of a year I would just keep the system that you already have up and running. It it were much longer than that I'd go with a bank vault that contains the access keys and something like tarsnap and yet another backup with another cloud provider.

[passwordqq2]

I'm assuming all my electronics fries, papers burn and memory goes away. (to be safe)

Bank vault might be a good idea (assuming they id me fine)