Are you OK with links and imagination? Assume you would break up your property into four quadrants. Then break each quadrant into four sectors. Wireless motion alarms can do this now out to 1000 feet.
The wireless alarms are for the outer quadrants. The sectors is a decision you would have to make. The outer should be silent to alert the retreat people. The inner is a loud noise with LED lights or something more powerful. If today, a noise alarm would be sufficient. WROL is something different. That would be you decision. Nevertheless, you would need to map (measure or step out) each sector into four zones.
Some links for you to start with:
There are many, but this is a quick google for your reference:
12 Gauge Security Control system
Twelve gauge comes in many loads:
Google and see what you think will fit your needs.
Here is something that can break your property into four zones:
Remote Alarm
Search Amazon for Mr. Beam spotlights in those zones. This is for when you may need to consider force.
Just a couple of things to get you started.
Please feel free to ask more questions after reviewing the material.
There are many questions you have to ask yourself about your situation.
In my case, I am remote on a ridge in the woods. I have blind spots that technology mitigates. I have worked with the world as it is today, to a world WROL.
LOL. Just recently this is how I saw my first badger in western pa. I followed it down my property after the first sensors were tripped.
I also have remote game cameras. There are bugs regarding the batteries. Just another chore to change them out on a monthly basis.
Hope this helps you to start.
Thanks! I will check these out and get back to you.
Sounds like you have a great setup. I’m in the process of relocating in the next few years, hopefully to a place that can be more secure. But that makes these next few years precarious and worrisome. Wish I was settled in our homestead NOW.