There is a show I saw called Homestead Rescue and this family rescues those in distressed homesteads. I can understand wanting to live privately or remotely. You do need to ask yourself and be honest about why you really want that hard lifestyle.
I personally couldn't do it, especially not the killing animals/hunting stuff.
8 acres would be enough for me. :-)
Your family probably is most concerned about your safety and well-being. Good luck.