Direct-burying of fibre in the countryside is cheap, doesn't require permission (beyond getting access to the land etc.) Landowners are generally hugely supportive, as they get better internet too (and being rural, have useless connectivity to begin with).
You can get street works permits fairly easily, for the "last half-mile", through access to "code powers" [1]. That also helps you bypass certain planning rules. And you can just do a regular premises installation - nothing cloak and dagger here!
[1] https://www.ofcom.org.uk/phones-telecoms-and-internet/inform...