My solution was to take a spare NUC I had, put a few drives on it in a ZFS array. I then placed it at a friend's house who was nice enough to house it for me. I run nightly rsyncs to it from home. So far, for the past couple years, it has worked great and didn't really cost me anything since I had the hardware; however a older used NUC or a ThinkCentre can be had pretty cheaply.