Personally, I think not using the hydraulics because of concern over failure is overkill. Obviously I could be wrong and they could fail but many of us have used them for extended time periods with no issue. Also, if you go the jack stand route you will need TI make sure you find a good and secure spot on the frame to support all that weight.
The jack stands will be pretty big and could take up a lot of room so keep that in mind too.
Just some food for thought.
2018 Voltage 3305