Sheep don't have to be worked with a dog.
Admittedly, a well trained dog or 2 is useful for large flocks, but small flocks are fairly easy to manage by the simple method of rattling the food bucket. And can also be taught to bring themselves home too.
Should have mentioned we used to keep sheep, and we used to fatten a few bullocks (cue Fnaar) each year too.
We've also kept ducks, geese, guinea fowl, pheasants and quail, and currently have chickens.
Not kept pigs yet, but I've read a lot about them (See ref to Home Farmer, Country Smallholding mag's and John Seymour books earlier and add Practical Pigs mag' to the list)
From a point of view of milder, easier to survive winters and an earlier start to the growing season, after the initial rendez vous at the NRM, can I suggest we go to Cornwall?
This has nothing whatsoever to do with the availability in Cornwall of both Camelia sinensis and Coffea arabica (tea and coffe, both grown at the Eden project)