[Anke]

My Shetlands don't have any shelter other than trees/hedge. They lamb outside. Those sheep are hardy!

[Fleecewife]

My Shetlands don't have any shelter other than trees/hedge. They lamb outside. Those sheep are hardy!

But they'll love you for a simple 4 stob, 3 boarded sides and a tin roof low shelter.  Primitive sheep know how to keep themselves cosy and will make use of a shelter in heavy rain or blizzards - in fact the ground shakes with their pounding feet when a shower starts    But they love to be outside in the dry cold

[Wee Noddy]

Hi there, some great advice to go with so far. Agree with all the above.
I would also consider buying three Wethers off a local farmer. You can pick his brains regarding any emergency problems you might have.
Also handy if he can sell you three doses of vaccinations, meds, the occasional  bale of hay, and let you know when his shearer is coming in case you don't get time. All of which can be awkward for 3 sheep.

 He might also be happy to put a few of his own sheep on your land during the heavier grass months when your on might struggle to keep the grass down.

Also, occasionally give them a handful of nuts in a bucket that you are holding. If you can get them trained to the bucket it will save a whole lot of running around if (read when) they get out!

Good luck and have fun.