Welcome to the forums and thank you for posting
Please ask me to clarify if you do not understand what I’ve said.
Be cautious. For example, if you buy 5,000 GB of hard-disk space, the bottlekneck (the limiting factor) will be your internet download/upload speeds.
The average internet speed is around 20 Mb/s download and 15 Mb/s upload (that is Megabits/second).
If you have 5,000 GB of space, it would take (5000 GB * 1000 MB/GB / 20 Mb/s * 8 bits/byte) = 2,000,000 seconds (23 days) to download that much data at a constant rate.
If you want to get involved, it wouldn’t be a bad choice to buy a 5 TB hard-disk. But know that if your internet is slow then you will not be able to fill it for several months.
To answer your question, SAFE farming will most likely be profitable eventually, which means you may operate at a loss (due to electricity and internet costs), but over-time (maybe 3-4 months?) your earned Safecoin will eventually be worth more than it cost you to generate, as the $/Safecoin goes up.