Do you have a local friend who would like to swap backup services with you? Each of you buys and configures a Raspberry Pi with a 2TB disk. Encrypt a storage filesystem. Load up your first backup, then swap boxes. Now you each have remote rsync/rsnapshot/rclone/ZFS/whatever targets, and if you run into big trouble, you can go get the box back for a really fast restore.
Disclaimer: I work at Backblaze so I'm biased and you should keep me honest.
> if you run into big trouble, you can go get the box back for a really fast restore
Backblaze provides this service for our customers! Customers can ask for an 8 TByte encrypted USB attached external hard drive to be prepared in the Backblaze datacenter with all their data beautifully restored on it, then we FedEx this anywhere in the world to them. This is a free service as long as the customer returns the USB drive to Backblaze in a reasonable amount of time (a couple months, and we can work with customers if they need longer). Or customers can pay $189 (which includes the drive, the data, and world wide shipping) and keep the 8 TByte USB drive.
What we often see is that if a customer's laptop is stolen or crashes, they sign into the Backblaze website to download the 3 or 4 individual files they were working on when the laptop was stolen. Let's say that is a term paper due the next day. That way they are back up and running IN SECONDS. Then the customer orders a free USB drive with 8 TBytes of their data which will show up in a few days. They can live without their wedding photos and their music for 3 days, but that term paper has to be handed in.