Some nice looking places there, looking to move further out myself, just missed out on a good one the week before last - 4 bed stone cottage, couple of acres bounded by woods and farms, woodburners already in and was ripe for being converted to solid fuel central heating, down a private road. Was up for £250K - which if you are a couple on UK average wage each, you can get a mortgage for - we offered 10% under, someone came along and snapped it up before we made another offer.
Stuff it, something else will come up, or I will buy some land and build, seem to be able to get planning a lot easier at the moment.
Now, if you wanted to buy an 'off the shelf' prepper house:
http://www.curlew-sike.co.uk/
Check that out. Damn near as remote as you can get in England - I think the road past it is private, already set up with spring bore hole, big genny, batteries and inverter, solar and wind set up, triple glazing, polytunnel (you will need it up there) and so on.
Thought about buying the place myself but it does not have enough land for me.