"What suggestions can I get to allow my property to grow to a more self reliant home."
well, what do you rely on the system for that you could possible provide for yourself? the two main things are food and water
food - sounds like you already have a plan for that
water - couple barrels attached to the downspouts, then ran through a filter (check diy section for home made berkey)
and you've got potable water covered, as well as cooking, sanitation, garden water, etc.
you can look into some sort of solar set up to provide your own power. or maybe even wind power, but city regs or hoa might
poo poo a large structure like that.
as far as security...hate to be captain obvious, but arm yourself and know how to use what you have.
install some motion sensor lights.
the fence is good, but won't really keep anyone out if they really want to come in.
a well trained canine might deter them though.
just a couple thoughts....