Old thread, but this guide was exactly what I was looking for. I have a small community as well and have been looking at storing our images and backups in the cloud, instead of on our main server with digitalocean. This should help our site run smoother by reducing the server load from image files.
I like how backblaze has a partnership with cloudflare to allow for free data transfer. We already use the free tier of cloudflare for DDOS protection. So with no fees on data transfer, this should save us money as we only have to pay for the storage. I’m going to try setting this up soon, with the additional step of including cloudflare in the mix.