I would agree with previous poster. Unless you know you will be moving pre-secondary, I would strongly recommend that you explore the secondary schools first, and use this to narrow down the field of primaries.
You will also need to think about how happy you are - and will be, as your child gets older - with small schools with mixed-age classes. These can be glorious when your child is very young. However, it's worth considering how well they are likely to meet the academic needs of your child throughout their time in each class (e.g. a very able child might do very well when in the 'younger' year group but find things a bit limiting when in the 'older' year group in each class). Funding is also an issue if small schools consistently run with small classes.
Also consider what is available in the specific community within which you live, as the parental taxi service can become a drag if e.g. swimming lessons, Brownies, dance, music group, girls' football etc etc are all 3-5 miles away, each in a different community facility or hall or the nearest larger town.
We moved, when my children were a similar age, away from an area very close to where you are considering to a middle-sized town in a different county. Here, everything we needed for children was within walking / cycling distance, and at a scale and quality that we could not have dreamed of.
That said, the villages around where you are looking are lovely, friendly, and there are lots of family-friendly attractions. It's just understanding the pros and cons, especially as your child gets older.