The Kilvaree breed can be seen on youtube.
For further information about the work of the RBST or the Soay breed of sheep:
http://www.soayandboreraysheepsociety.org
If you would like to know more about crofting in Scotland:
Museums in the West Highland area:
Kilmartin Museum
The museum is open daily until November (reduced days and hours) and visitors to the area can also visit the prehistoric monuments ( Burial Cairns, Standing Stones, Stone Circle...).
West Highland Museum - Fort William
http://www.westhighlandmuseum.org.uk
Other Museum(s)
Flag Fen Archaeology Park, Peterborough, Cambs
The Scottish Crannog Centre, Kenmore, Perth & Kinross