I have 7 acres. I used to own 30 acres next door too. It was nice - big stocked pond, metal pole barn with concrete and utilities, 100 or so apple trees, 22 of it being farmed which covered the taxes. Selling that land is my biggest - maybe only- regret. My daughter was a baby, I wasn't making shit - it was during that 'mortgage meltdown' or whatever it was. Anyhow, there was no work and I freaked out. That land could have saved me and a couple of my neighbors plus funded my retirement. Hopefully 7 acres is enough to keep people at a distance.
300 acres would not be enough. They are coming for us both, stop signs, low speed limits, cameras, street lights, .....