Oh how I'd love to have the fence above, but alas... it's not going to happen. I've spent a lot of time looking around at what others have done as far as perimeter fences and gates, how they're embedded into stone (or concrete in some cases) and here are a few samples of what I'm looking at nearby in Covington, KY.
I like the one above, it's about three blocks away from us, and although we don't have the stacked stone base under the limestone, I see this as a distinct possibility to emulate.
Hoop and spear, pretty basic... in concrete.
Above, in limestone, below in concrete. Again, all ok as far as I'm concerned.
Now, this is going to be the part that kills me: finding these end posts. OK, maybe not the one below, but it's pretty darn cool.