My advice is to keep looking and looking and looking.
We bought our 10 acres 5 years ago and had been looking for a while. We knew where we wanted to be because we wanted to stay in the locality we had been living in ans we didn't want to move the children from their schools and friends. It seemed impossible. Land around here seemed so unlikely and was always expensive - and then we happened to see this plot with a building plot attached. We weren't particularly wanting to build a house but it was the only way we could purchase land around here. Well now we are living in a shed while the house is progressing so very slowly that there is no visible movement - but we are very happy. We now have a fab little flock of shetland sheep, shetland geese, chooks and more ducks than is sensible.
I really think that making a list of the most important priorities for you will allow you to think what you might consider giving up to achieve the top three.
Good luck