I grew up on and manage quite a bit of property.
To plow and maintain a place like you're talking about, heavy iron and tractors cost in the tens of thousands, and hundreds of thousands more for the land, house, hangar, improvements, and well(s). All with insurance and maintenance. If you have the money, no sweat until something breaks or goes sideways. Just remember, the more stuff you own, the more it owns you.
As far as using it as a business, insurance and liability is going to be your #1 concern. Personally, I don't give permission to land on our land or our make-shift cow pasture landing strip. Even with no permission, if someone lands there and get's hurt, I could have to defend my position. If you give permission, and something goes awry, you REALLY have to defend your position and the safety of YOUR airstrip. You gotta think deeper when people get hurt or worse, and someone has to get paid from someone.
I would re-think your dream just a little imo ...
You don't need 100 or 200 for an airstrip depending on how the land lays and how skinny-narrow the tract is. 20 would be my minimum starting search parameter for a 2000' grass strip for a STOL aircraft like our skywagon. A true 5000' jet strip is going to require a section of land most likely or 640 acres.
To answer your questions best I can, yes, you need $$$$ to own a nice home on 25 to 50 acres. Otherwise, you won't build all those things you see in your mind.
It depends on what your hunting whether 230 acres is enough. It should be enough to shoot a gun at something ... that depends on the gun.