At the end of the day it comes down to luck, sometimes people will leave your stuff alone, sometimes they won't. I do have some advice, although i don't own a property like this yet I have done some research and here is some advice I have found.
-Know your neighbourhood before you buy. Look at the local crime statistics, talk to neighbours about what expericnes they have had. Check out the local police, how good are they? What is the attitude towards crime, youths and prepping in the area.
-Keep the property concealed from the road outside. So if I stood on the road I wouldn't be able to see it.
-Have the main path from the drive way do many winds and turns and eventually lead off to a false cabin. Get a small fake cabin and put some food, maybe a chair or to inside it and a few other things, people may think it is just a small hunting cabin and if it is on the main path it may fool people into thinking that is all that is there.
-Have a small dirt road, ideally one that looks rough and unused lead of the main path that goes to your actual location. Make sure that as soon as it goes of the main road it turns past some trees so it can't be seen. Also place some shrubs and bushes to cover the entrance to the road.
-Secure the house as much as possible. If someone really wants to get in they will, but the longer it takes the better, they may just give up and move to an easier target. Reinforce your doors, add more locks use fly screen doors, smash proof windows, alarms (both electric and manual), CCTV, motion sensors lights, motion sensors alarms around the house, fences, barb wire, private property signs etc.
-Make your house hard to see even when on the property, have thick tress surrounding the house that you can't see through. Make there only 2 entrances to the area and make them small and non noticeable. Also design the area so that you funnel people into a "kill zone" that limits their avenues of approach, useful to deter both criminal and opponents by exposing them.
-Hide everything! Leave nothing in plane sight you can not afford to lose. Bury your propane tank, have an underground water tank, store your fire wood in large logs, took big to carry away (you can chip away at it later). Your power generator should be locked away, underground in the basement if possible. Have a basement built with a hidden hatch that you place under a carpet and then put a piece of heavy furniture over that. Make it fireproof so if your place burns down it won't be lost.
-Store some of your supplies away from the main location, look into some sort of bunker, not like the ones on doomsday peppers but big enough to store your food, water, medical supplies etc.
-I would not store your guns at the main location if you keep them there at all.
-Have an agreement with your neighbours if you trust them so that if they see anything they will check it out.
Your best plan is hide everything valuable that way if, God forbid, you need your bug out location your supplies are safe and untouched. Yes the house and furniture may have been thrashed a but it's better than nothing and at least those can be fixed. (Good idea to have DIY supplies on hand to fix things.)