With what I saw with me current HDDs I wouldn’t have though smaller HDD would be the most power efficient. And now I understand better why sometimes I read HDD can be more efficient than SSD.
I planned to share it with my family. As I won’t be the only user, this is not ideal.
Besides I run automatic backup and planned to also store them in the NAS. So again if it’s off half the time, this is not ideal.
Be aware that doing it like this, the traffic from the VPS to your home will be unencrypted.